More than 600 local law enforcement agencies throughout the country are officially partnering with ICE to arrest and detain undocumented immigrants.

The president called on federal agencies to enforce the "largest mass deportation programme in history".

President Donald Trump announced that the nation's large Democratic-run cities are to be the new focus for U.S. Immigration and Customs Enforcement operations.

More than 600 local law enforcement agencies throughout the country are officially partnering with ICE to arrest and detain undocumented immigrants.