The United States flag tanker “Edgar M. Queeny” rammed the Greek tanker “Corinthos,” while the latter was discharging 400,000 bbl of crude oil at a refinery jetty at Marcus Hook on the Delaware River. A huge initial explosion, and subsequent explosions and fires, occurred on the Greek ship as a result.

Twenty-five crew members were killed on board the vessel, in addition to a crewman from the flag tanker. The Corinthos sank shortly afterwards and was later removed for scrapping.