Robbers beat an 18-year-old Wednesday night at Theodore Roosevelt Memorial Park in Oyster Bay, police said.
The victim was leaning against his car about 8:15 p.m. when he was struck by two or three men who demanded his money, Nassau County police said.
One of the robbers took the victim’s wallet, which had undisclosed amount of cash, a debit card and a credit card, police said.
There is no physical description of the robbers, who fled in an unknown direction, police said.
The victim was treated at a hospital for swelling to his face and right eye, police said.
Detectives requested that anyone with information about the robbery call Nassau County Crime Stoppers at 800-244-8477.