A woman was killed in a one-car accident early Thursday on Route 111 in Eastport, Suffolk County police said.

Police identified the driver as Heather Petrie, 40, of Eastport. She was pronounced dead at the scene.

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Petrie was traveling south on Route 111 when her vehicle flipped in the median on the roadway, just north of County Road 51, at about 7:45 a.m., police said. It was not known if Petrie was wearing a seatbelt.

With John Valenti