About an hour and a half after crews cleared the wreckage of an overturned tractor trailer that closed the last exit ramp on the eastbound Long Island Expressway for much of Tuesday morning, Riverhead police said a second tractor trailer overturned in the same spot -- closing the ramp all over again.

The second accident on Exit 73, which leads to Route 58 near the Tanger Outlet Mall in Riverhead, was reported at 11:53 a.m., police said.

The first accident, which occurred at 3:48 a.m., had closed the ramp until about 11 a.m.

The first accident resulted in two minor injuries, police said.

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It was not immediately clear if anyone was seriously injured in the second accident. Police said an ambulance was dispatched to the scene.

Both closures forced police to divert traffic from the eastbound LIE at Exit 72, leading to Route 25 in Riverhead.