President Donald Trump's administration is planning to close the U.S. immigration agency's overseas locations, according to current and former officials and an internal memo, in a move affecting offices that currently handle family visa requests, international adoptions and other tasks.

The move is the latest from an administration that has worked to limit both legal and illegal immigration since Trump took office in January 2017, including cuts to the U.S. refugee program and heightened vetting of U.S. visa applications.

U.S. Citizenship and Immigration Services (USCIS) Director Francis Cissna, in an email message to agency employees, announced plans for closure of the international field offices. The plans called for shifting those duties to U.S.-based agency offices and American consulates and embassies abroad.