Police are searching for Roslyn Heights teenager Michael Du, Nassau County police said.
Du, 15, was last seen at his home at 4:30 p.m. last Friday, police said.
Police described Du as 130 pounds, 5 feet 8 inches tall, and wearing black pants and a black jacket.
He may be in the Flushing, Queens area, police said.
Detectives request anyone with information on Du’s whereabouts to contact Missing Persons Squad at 516-573-7347 or call 911. All callers will remain anonymous.