Debris scattered on the Long Island Expressway forced officials to close all westbound traffic lanes Monday night, Suffolk police said, from Exits 55 in Central Islip to 57 in Hauppauge.

Northville Industries was doing a pressurized water test on otherwise empty fuel lines when something burst at about 8:30 p.m., damaging about six vehicles, police said. The temporary break spread water and debris primarily to the area north of the LIE service road near Exit 57, police said. No one was injured, police said.

The westbound LIE, which was closed at about 8:30 p.m., reopened about 11 p.m., police said, but the service road remained closed. Officials at that time did not estimate when that road would reopen.

The DOT was in charge of the clean up, police said.

Northville, of Melville, is a petroleum storage, distribution and wholesale company, according to its website. Company officials could not be reached for comment.

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