In northern Nigeria, authorities have beefed up security after the twin bombings in the city of Jos two weeks ago. Authorities have also asked residents to be on the lookout for any suspicious looking people who could cause trouble. CCTV’s Kofa Mrenje reports.

Nigeria violence: Increased security in Jos

In northern Nigeria, authorities have beefed up security after the twin bombings in the city of Jos two weeks ago. Authorities have also asked residents to be on the lookout for any suspicious looking people who could cause trouble. CCTV's Kofa Mrenje reports.