The Trump administration is taking the unusual step of deploying a Navy warship off the waters of the U.S. as part of its broader crackdown on security and migration along the Mexico border.

The vessel is commonly used in overseas missions. The Coast Guard typically takes a lead role in security missions at sea close to the United States.

A U.S. Navy destroyer has been deployed to help "restore territorial integrity at the U.S. southern border" as part of President Trump's executive orders, officials said.