CHICAGO (CBS)-- A cab driver was robbed at gunpoint on the Northwest Side in Norwood Park overnight.

Police said the 37-year-old driver was in his parked vehicle, in the 5400 block of North Harlem Avenue just before midnight, when an offender approached with a gun.

The offender pointed a gun at the cab driver's chest and demanded money.

The victim handed over money and the robber ran off.

Police said the driver was not physically hurt, but did suffer a panic attack and was treated at a local hospital.

No one is in custody.