A shoplifting suspect being chased by a security guard ran onto busy Queens Boulevard, where he was struck by a car, police sources said.

The man was spotted stealing merchandise at the Macy’s store in the Queens Mall in Elmhurst at about 7:30 p.m. yesterday, the sources said.

He ran out of the mall and into traffic, where he was hit by a gray Nissan. He was rushed to Elmhurst Hospital in critical condition, with severe head injuries.

The woman driving the car was not charged.