A migrant climbs the border fence before jumping into San Diego, California, from Tijuana, Mexico

Donald Trump's frustration at the denial of his request for $5bn in funding from Congress for his promised wall on the US-Mexico border is building as the government shutdown continues with no end in sight.

The president has once again threatened to close America's southern border unless he receives the funding, and has also threatened to cut US funding to Honduras, Guatemala and El Salvador over what the president claims is a lack of action over immigration.

People from the three nations formed the bulk of the caravans that have reached the US border in recent weeks, with Mr Trump claiming - without evidence - another is forming in Honduras. It comes as US immigration officials face questions over the deaths of two Guatemalan children at the border in the last two weeks.

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