The Coast Guard has reopened the Mississippi River to all traffic near the International Matex Tank Terminals after two ships collided late Tuesday night.The disabled vessel, Flag Gangos, is no longer impeding traffic, the Coast Guard said in a news release. The slow-bell requirement was still in effect in the vicinity of the IMTT facility.Watch reportTwo tanker ships and a barge collided in the Mississippi River near the Gretna ferry landing late Tuesday night, spilling 580 gallons of oil into the water.Responders used boom to contain the 580 gallons of No. 6 oil that was released in the accident, which happened when the towing vessel captained by Shawn D. Martinez was transferring No. 6 fuel oil from a barge. No. 6 oil is a type of fuel for vessels.At that time, the vessel Flag Gangos lost power, according to investigators, and collided with the vessel Pamisos and the barge, near mile marker 97.4, by the IMTT.The Coast Guard is investigating the cause of the collision.Previous:Cleanup, investigation underway after tanker, barge collision in Miss. River