BROOKLYN - Authorities are trying to track down the suspect who stole an elderly man's cellphone. 

Police released a photo of the man, who they say robbed the 69-year-old victim last month at the F train subway station on McDonald and 18th avenues. 

The suspect is described as being about 6 feet 2 inches tall, and between 160 and 200 pounds. 

If you recognize him, call Crime Stoppers at 1-800-577-TIPS