BROOKLYN - Police have arrested a 21-year-old man for the brutal beating of a woman inside a Borough Park subway station.

Authorities say Aidan Folan, of Brooklyn, was caught on camera attacking a 56-year-old woman after she got off the F train at 18th Avenue. Surveillance video allegedly shows Folan approaching the victim from behind, grabbing her bag, and then kicking her and even throwing her against the wall.

Investigators say it happened on March 9 at around 2:30 a.m.

Folan has been charged with robbery and assault.