FOUNTAIN HILL, Pa. (AP) – Police in eastern Pennsylvania say two men tried to rob and carjack a pizza delivery driver but were defeated by the vehicle’s standard transmission.

Fountain Hill police say the Domino’s Pizza driver had stopped at a red light early Friday when a man ran up to the vehicle from the rear and grabbed her by the throat and shirt. He demanded money while a second man tried to open the passenger door.

Police say the driver reported that the men fled after making a reference to the manual transmission. Investigators did not say whether they escaped with any money from the driver.