ELIZABETH – A police chase that ended with a truck flipping over on the New Jersey Turnpike was part of an on-again, off-again pursuit that started in Delaware. State Police spokesman Jeffrey Lebron said the Penske box truck fled a traffic stop in Delaware and headed north into New Jersey where troopers saw the truck at a BP station on Route 130 in Burlington Township. The occupants of the truck resisted arrest and took off towards the Turnpike.