Mayor Cory Booker is at it again -- sort of.

Two months after he shot to national prominence for rescuing neighbors from a fire, the Newark, N.J. mayor showed up at the scene of a car accident where a pedestrian had just been hit -- but it was someone else who did most of the heroics.

"God bless my residents. Pulled up on pedestrian/vehicle accident. We got man stabilized & into ambulance. He'll b OK. Thanx 2 all who helped," Booker tweeted Friday afternoon.

Booker told WNBC-TV he helped get water and ice for the victim and comforted the man until an ambulance arrived.

He followed up with a second tweet: "I appreciate the driver. Man ran into traffic. Driver did the right thing & stayed & helped me & others aid man until medical help arrived."

According to the New Jersey Star-Ledger, law enforcement authorities said a county detective was actually the first on the scene and rendered most of the aid.

"The detective immediately called 911 and began to render assistance," said Katherine Carter, a spokeswoman for the Essex County Prosecutor's office. "He saw the victim was face down on the ground. He was bleeding from his mouth and nose. Det. [Michael] Davidson got some tissues from his trunk and began to wipe away the blood."

Carter said Booker showed up "within minutes," followed by an ambulance and Newark police.