Police are looking for the motorcyclist they say shot and injured a man on the Long Island Expressway in Queens.

Investigators say a 25-year-old man was shot in the arm as he drove his car in in Corona around 11 o'clock last night.

Police say the gunman later jumped off his motorcycle near Exit 21 and 108th Street and ran off.

Sources tell NY1 the victim had fathered a child with the shooter's ex-girlfriend.

They also say she was in the car with the victim at the the time, but was not hurt.

The driver was taken to the hospital and is in stable condition.

Anyone with information on the case should contact the Crime Stoppers hotline at 1-800-577-TIPS, or text CRIMES and then enter TIP577, or visit www.nypdcrimestoppers.com.