As the ship made its return to Evansville Thursday night, reports are now surfacing that the pilot of the USS LST-325 may have been drinking just prior to the time the ship ran aground Monday night in Lake Barkley.

Reports out of Evansville say that a crew member has told the U.S. Coast Guard the pilot may have been drinking alcohol before the ship got stuck. The World War II ship ran aground on its way home after a two week cruise, which included stops in Nashville and Clarksville.

Coast Guard officials say they are looking into that allegation, as well as any other potential causes for the accident. The Coast Guard originally said the cause of grounding appeared to be due to inclement weather. The Coast Guard has not given a timeline on how long their investigation may take.