LAUDERDALE-BY-THE-SEA, Fla. — A naval mine used for underwater military training washed up on the beach in Lauderdale-by-the-Sea early Sunday.

A Broward County Sheriff’s Office deputy on patrol discovered the device had washed up onshore.

Deputies secured the area around the item and closed off a portion of the beach.

The item had the word “inert” written on it.

#UPDATE – Officials remove sea mine that washed ashore in Lauderdale-by-the-Seahttps://t.co/KhdMSG3aDb

— WSVN 7 News (@wsvn) April 4, 2021

The BSO’s bomb squad was called to the scene in an abundance of caution.

Naval mines usually contain flight gear or handling gear, an explosive case, an arming device with an explosive train, a target detecting device, and a battery.

Officials from the U.S. Air Force also responded to the scene, and working in conjunction with the bomb squad, determined that the sea mine was safe and it was removed.

The beach has reopened.