Tensions at the U.S. border with Mexico have escalated, with some Central American migrants trying to breach the crossing between Tijuana and California. Observers say it’s a bid to pressure the U.S. to hear their asylum claims.

Mexican officials have denied reports of any immigration deal with Washington that would help asylum seekers. CGTN’s Alasdair Baverstock filed this report from Mexico City.

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Tear gas, scuffles as some migrants try to breach U.S.-Mexico border

Hundreds of migrants approaching the U.S. border from Mexico were enveloped with tear gas Sunday after several tried to make it past fencing and wire separating the two countries.