Police are searching for a man who allegedly assaulted a 70-year-old woman at a Brooklyn subway stop on Sunday.
The incident occurred at about 10:45 a.m. on the southbound platform of the R train at the 4th Avenue-9th Street stop in Park Slope, police said.
The suspect approached the victim, struck her in the head with his fist and then fled.
Police released surveillance photos of the man.
Anyone with information is asked to call Crime Stoppers at (800) 577-TIPS (8477). The public can also submit their tips by logging onto Crime Stoppers' website or by texting their tips to CRIMES (274637), then enter TIP577.