Fog Blog U.S. News Log: Explosion On U.S. Naval Ship...21 Injured:

Twenty-one people were injured after an explosion and fire on board a ship at the US Naval Base in San Diego, US Navy officials said.

"Seventeen Sailors and four civilians are being treated for non-life threatening injuries at a local hospital," the US Navy said in a statement.

The sailors on the USS Bonhomme Richard had "minor injuries" from the fire and were taken to a hospital, Lt. Cmdr. Patricia Kreuzberger told CNN earlier Sunday.

All of the crew is off the ship and accounted for, according to a tweet from the US Pacific Fleet Naval Surface Forces Sunday afternoon.

Firefighters battled a three-alarm fire on the ship Sunday morning, SDFD's Mónica Muñoz said. Several different agencies worked to fight the blaze.