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.

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.

President Donald Trump has already inundated the country’s immigration system with enough changes to create immediate impacts along the border and across American cities. Thousands of migrants trying to gain entry in the United States to seek asylum using the Custom and Border Patrol’s mobile app — set up by the Biden administration to deter migrants from crossing illegally — had their appointments canceled,

President Donald Trump said in an Oval Office signing ceremony Monday evening that his administration will impose 25% tariffs on Mexico and Canada on February 1, an extraordinary change in North American trade policy that could raise prices for American consumers.

The Trump administration is discussing a 10% punitive duty on Chinese imports. Trump said the EU also has troubling trade surpluses with the United States.