A Navy corpsman from Camp Pendleton has been killed in Afghanistan, the Pentagon announced Saturday.

Seaman William Ortega, 23, of Miami was killed Friday by a roadside bomb in Helmand province, on the Pakistani border. He was assigned as a hospital corpsman to the 3rd Battalion, 1st Marine Regiment, 1st Marine Division, 1st Marine Expeditionary Force at Camp Pendleton.

-- Tony Perry in San Diego