WASHINGTON (Reuters) - 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.

The department says the cuts, part of a reorganization that will see 3,000 total personnel reductions, will slash redundancy and walk back growth over the last 25 years.

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.

A rally is expected, with supporters “clapping out” departing State Department employees and protesting the layoffs at 4 p.m. Friday.

In connection with the departmental reorganization … the department is streamlining domestic operations to focus on diplomatic priorities.”

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.

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