It followed threats by Trump to levy import taxes of 25% on Mexico and Canada, accusing them of allowing undocumented migrants and drugs to come into America. Though he did not mention the US by name, the Vice Premier of China on Tuesday said his country was looking for a "win-win" solution to trade tensions and wanted to expand its imports.

The US-Mexico border is effectively closed off to migrants seeking asylum in the United States within hours of President Donald Trump taking office, an extraordinary departure from previous protocols that has left many concerned migrants in limbo.