Coast Guard Commandant Adm. Linda Fagan has been relieved from her duties as the service's top officer by the incoming Trump administration.

In a Coast Guard-wide message sent out Tuesday morning, acting Secretary of Homeland Security Benjamine Huffman announced Fagan's removal without saying why the action was taken.

The firing comes after President Donald Trump was sworn into his second term in office on Monday and issued a flurry of executive orders. Fagan appeared to be the first high-profile firing within the military amid Trump's promises to purge members he deems unfit or go after political adversaries.

In one case, outgoing President Joe Biden on Monday pardoned retired Gen. Mark Milley, who served as the Joint Chiefs chairman during Trump's prior term, to protect him from potential "revenge" by the new president. Milley's Joint Chiefs chairman portrait was suddenly removed from the Pentagon on Trump's first day in office.