New York State Police have launched a criminal probe into a trooper who claimed he was shot and wounded by an unknown gunman on a Long Island highway last week.

New York State Police suspended a trooper without pay Monday after launching an investigation into his account of being shot and wounded while attempting to help a motorist on a Long Island highway last week.

An all-out manhunt is underway after a New York State Police trooper was shot by a driver on the Southern State Parkway.

The New York State trooper who claimed he was shot during a traffic stop on Long Island last week was suspended without pay — as officials probe whether he lied about the incident, authorities said. Police spent hours searching Trooper Thomas Mascia’s home in West Hempstead on Monday after launching an internal investigation into his account of the Oct.