As Harvey continues to reek havoc on Texas and other southern states, citizens and emergency workers struggle to protect life and property.
Harvey, which made landfall late Friday as a Category 4 hurricane and has lingered just off the coast dropping heavy rain as a tropical storm, sent devastating floods pouring into Houston on Sunday. The rising water chased thousands of people to rooftops or higher ground and overwhelmed rescuers who could not keep up with the constant calls for help.
Texans rally to protect life and property during Harvey
PHOTOS: Harvey bears down upon Texas

Evacuees
Evacuees wade down a flooded section of Interstate 610 as floodwaters from Tropical Storm Harvey rise Sunday, Aug. 27, 2017, in Houston. The remnants of Hurricane Harvey sent devastating floods pouring into Houston Sunday as rising water chased thousands of people to rooftops or higher ground. (AP Photo/David J. Phillip)

APTOPIX Harvey
People push a stalled pickup to through a flooded street in Houston, after Tropical Storm Harvey dumped heavy rains, Sunday, Aug. 27, 2017. The remnants of Hurricane Harvey sent devastating floods pouring into Houston on Sunday as rising water chased thousands of people to rooftops or higher ground. (AP Photo/Charlie Riedel)

Harvey
A man carries a child across a flooded street in Houston after Tropical Storm Harvey dumped heavy rains northeast Texas, Sunday, Aug. 27, 2017. The remnants of Hurricane Harvey sent devastating floods pouring into Houston Sunday as rising water chased thousands of people to rooftops or higher ground. (AP Photo/Charlie Riedel)

Harvey
A man floats past a truck submerged on a freeway flooded by Tropical Storm Harvey on Sunday, Aug. 27, 2017, near downtown Houston. The remnants of Hurricane Harvey sent devastating floods pouring into Houston Sunday as rising water chased thousands of people to rooftops or higher ground. (AP Photo/Charlie Riedel)

Harvey
Cattle are stranded in a flooded pasture on Highway 71 in La Grange, Texas, after Hurricane Harvey on Monday, Aug. 28, 2017. (Jay Janner/Austin American-Statesman via AP)

Harvey
Gov. Greg Abbott speaks at a news conference about Hurricane Harvey at the State Operations Center in Austin, Texas, on Friday, Aug. 25, 2017. Hurricane Harvey is shaping up as just about a worst-case scenario storm with possible flooding from two different directions. ( Jay Janner/Austin American-Statesman via AP)

Harvey
A tattered U.S. flag whips in the wind in Geronimo, Texas, during Hurricane Harvey on Saturday August 26, 2017. (Jay Janner/Austin American-Statesman via AP)

Harvey
Roger Braugh Jr. searches for his boat is this boat storage facility in Cove Harbor in Rockport, Texas, in the wake of Hurricane Harvey, Sunday, Aug. 27, 2017. (Rachel Denny Clow/Corpus Christi Caller-Times via AP)

Harvey
The Texas state flag and American flag wave in the wind over an area of debris left behind in the wake of Hurricane Harvey, Sunday, Aug. 27, 2017, in Rockport, Texas. (AP Photo/Eric Gay)

Epic Flooding Inundates Houston After Hurricane Harvey
HOUSTON, TX - AUGUST 27: Riley Gardell (R) and Jacob Song make their way across a flooded parking lot on the campus of Rice University afer it was inundated with water from Hurricane Harvey on August 27, 2017 in Houston, Texas. Harvey, which made landfall north of Corpus Christi late Friday evening, is expected to dump upwards to 40 inches of rain in areas of Texas over the next couple of days. Scott Olson/Getty Images/AFP

Hurricane Harvey Slams Into Texas Gulf Coast
HOUSTON, TX - AUGUST 27: Naomi Coto carries Simba on her shoulders as they evacuate their home after the area was inundated with flooding from Hurricane Harvey on August 27, 2017 in Houston, Texas. Harvey, which made landfall north of Corpus Christi late Friday evening, is expected to dump upwards to 40 inches of rain in Texas over the next couple of days. Joe Raedle/Getty Images/AFP

Hurricane Harvey Slams Into Texas Gulf Coast
ROCKPORT, TX - AUGUST 27: Robert Grant and Rocky from the Texas Task Force 2 search and rescue team work through a destroyed apartment complex trying to find anyone that still may be in the apartment complex after Hurricane Harvey passed through on August 27, 2017 in Rockport, Texas. Harvey made landfall shortly after 11 p.m. Friday, just north of Port Aransas as a Category 4 storm and is being reported as the strongest hurricane to hit the United States since Wilma in 2005. Forecasts call for as much as 30 inches of rain to fall in the next few days. Joe Raedle/Getty Images/AFP
![A passerby tries to pickup a fallen McDonalds logo as the effects of Hurricane Harvey are seen August 26, 2017 in Galveston, Texas.
Hurricane Harvey left a deadly trail of devastation Saturday in Texas, as officials warned of "catastrophic" flooding and said that recovering from the most powerful storm to hit the United States in more than a decade could take years. / AFP PHOTO / Brendan Smialowski / ìThe erroneous mention[s] appearing in the metadata of this photo by Brendan Smialowski has been modified in AFP systems in the following manner: [Hurricane Harvey] instead of [Hurricane Henry]. Please immediately remove the erroneous mention[s] from all your online services and delete it from your servers. If you have been authorized by AFP to distribute it to third parties, please ensure that the same actions are carried out by them. Failure to promptly comply with these instructions will entail liability on your part for any continued or post notification usage. Therefore we thank you very much for all your attention and prompt action. We are sorry for the inconvenience this notification may cause and remain at your disposal for any further information you may require.î](https://america.cgtn.com/wp-content/uploads/cache/2017/08/HURRICANE_HARVEY_AFTERMATH12/3502721143.jpg)
US-WEATHER-STORM-HARVEY
A passerby tries to pickup a fallen McDonalds logo as the effects of Hurricane Harvey are seen August 26, 2017 in Galveston, Texas.
Hurricane Harvey left a deadly trail of devastation Saturday in Texas, as officials warned of "catastrophic" flooding and said that recovering from the most powerful storm to hit the United States in more than a decade could take years. / AFP PHOTO / Brendan Smialowski / ìThe erroneous mention[s] appearing in the metadata of this photo by Brendan Smialowski has been modified in AFP systems in the following manner: [Hurricane Harvey] instead of [Hurricane Henry]. Please immediately remove the erroneous mention[s] from all your online services and delete it from your servers. If you have been authorized by AFP to distribute it to third parties, please ensure that the same actions are carried out by them. Failure to promptly comply with these instructions will entail liability on your part for any continued or post notification usage. Therefore we thank you very much for all your attention and prompt action. We are sorry for the inconvenience this notification may cause and remain at your disposal for any further information you may require.î

Hurrican Harvey aftermath in Texas August 26, 2017.
People make their way down partially flooded roads following the passage of Hurricane Harvey on August 26, 2017 in Galveston, Texas. / AFP PHOTO / Brendan Smialowski

Hurricane Harvey aftermath in Texas
Celina Martinez returns to find their family home badly damaged after Hurricane Harvey hit Rockport, Texas on August 26, 2017. / AFP PHOTO / MARK RALSTON

Hurricane Harvey Slams Into Texas Gulf Coast
GALVESTON, TX - AUGUST 26: Wind and rain from Hurricane Harvey batter the shoreline on August 26, 2017 in Galveston, Texas. Harvey, which made landfall north of Corpus Christi late last night, is expected to dump upwards to 40 inches of rain in Texas over the next couple of days. Scott Olson/Getty Images/AFP

Hurricane Harvey threatens Texas, Louisiana
Strong winds batter seaside houses before the approaching Hurricane Harvey in Corpus Christi, Texas on August 25, 2017.
Hurricane Harvey will soon hit the Texas coast with forecasters saying it's possible for up to 3 feet of rain and 125 mph winds. / AFP PHOTO / MARK RALSTON

APTOPIX Harvey
A car is submerged on a freeway flooded by Tropical Storm Harvey on Sunday, Aug. 27, 2017, near downtown Houston, Texas. The remnants of Hurricane Harvey sent devastating floods pouring into Houston on Sunday as rising water chased thousands of people to rooftops or higher ground. (AP Photo/Charlie Riedel)

Hurricane Harvey Slams Into Texas Gulf Coast
ROCKPORT, TX - AUGUST 26: Terry Smith stands in the apartment that had its ceiling collapse when Hurricane Harvey hit on August 26, 2017 in Rockport, Texas. Ms. Smith said she has never been as terrified in her life as when the winds started roaring through town. Harvey made landfall shortly after 11 p.m. Friday, just north of Port Aransas as a Category 4 storm and is being reported as the strongest hurricane to hit the United States since Wilma in 2005. Forecasts call for as much as 30 inches of rain to fall by next Wednesday. Joe Raedle/Getty Images/AFP