Officials say that an emotionally disturbed man breached security at one of the nation’s busiest ports, boarded a ship and was found in the captain’s cabin, according to an article from The Associated Press.

Officials are trying to figure out why Eric Carrero went unchallenged while he scaled a barbed wire– topped six-foot security fence at the Port Newark marine terminal in New Jersey on Wednesday, the article reports.

A Port Authority of New York and New Jersey official says Carrero wandered around before boarding the cargo ship. He was found in the captain’s bed about four hours later, AP reports.

He is undergoing a psychiatric evaluation.

This is the second recent security breach at a Port Authority facility after a man swam to Kennedy Airport after his personal watercraft sank earlier this month.