( CNN ) -- A U.S. guided missile destroyer was involved in a collision with an oil tanker near the Strait of Hormuz , the U.S. Navy announced . No one on either the USS Porter or the Japanese-owned M/V Otowasan was injured , the Navy said . The 505-foot Porter is operating under its own power near the strait , a strategically important chokepoint for oil shipments from the Persian Gulf . The crew is evaluating the damage , which appeared in photos released by the military to be a large dent in the side . The Norfolk , Virginia-based ship is part of the U.S. 5th Fleet and left its home port on March 12 . The Navy said the accident , which occurred Sunday at about 1 a.m. local time , was not combat-related . Navy : U.S. destroyer collides with oil tanker . Iranian sailors chase off pirates attacking U.S. ship .
Vessels collided near important point for oil shipments leaving the Persian Gulf . No one was injured , military says . Ship is under way while crew evaluates the damage .