The State Department is sending formal layoff notices to 1,107 civil service employees and 246 foreign service officers with domestic assignments, according to internal department communication reviewed by ABC News.

The involuntary staff reductions include 1,107 civil service and 246 foreign service employees, according to a notice sent to employees Friday morning.

The State Department began firing more than 1,350 U.S.-based employees on Friday as the administration of President Donald Trump presses ahead with an unprecedented overhaul of its diplomatic corps, a move critics say will undermine U.S. ability to defend and promote U.S. interests abroad.

Donald Trump's unprecedented overhaul of the diplomatic corps will undermine U.S. ability to defend and promote its interests abroad, critics say.

No State Department official publicly said when the first notices for the planned layoffs would be sent, but the widespread expectation is for the terminations to start as soon as Friday.

Employees of the U.S. State Department could receive a layoff notice via email very soon as part of the Trump administration's plan to downsize the government.

The State Department will start sending notices to members of its workforce impacted by the reorganization soon, the agency's top official for management said on Thursday, as President Donald Trump's administration moves ahead with its plans to overhaul the U.

Videos show emotional scenes as tearful State Department employees emerge to applause from colleagues after being abruptly fired.