Mexico has sent hundreds of police to its southern border as a caravan of thousands of Central American migrants approaches from Guatemala. The move came after President Donald Trump threatened to use military force to completely close the US-Mexico border over the issue.
He also said aid could be cut to countries allowing the caravan to pass. The group of Salvadoreans, Hondurans and Guatemalans say they are fleeing violence and poverty.
Honduran migrants: ‘We left because we had to.’
Mr Trump has previously threatened to cut Honduran aid. The US sent more than $175m (£130m) to the country in 2016 and 2017, according to the US Agency for International Development.
The president’s threats also come just weeks before the mid-term elections on 6 November, which could see Democrats unseating Republicans in Congress.
Mr Trump’s recent comments are being viewed as an effort to bolster support among his base by cracking down on migration.