Thousands of migrants from Honduras hope to cross into the US once Donald Trump leaves office however the caravan is currently blocked by Guatemalan armed forces at the border.
The new temporary rule will affect travellers from some 15 African countries.
Across the US, a number of Lutheran churches have formed a sanctuary movement to support undocumented migrants - and their work has doubled due to Covid
By Lucy Rodgers and Dominic Bailey
African refugees claim mistreatment at the hands of US immigration officers
Will Trump’s promise to build a wall along the Mexico border help or hinder his attempt to win four more years?
By Rebecca Seales
By Ed Lowther
Data journalist, BBC News
US immigration recently announced that those whose courses became online-only, could risk losing their visas.
Foreign students in the US have been told they'll have to leave the country if their classes are all taught online.