Police released a sketch and surveillance video of a man suspected of attacking a woman on a F train, stealing her purse and demanding she give him her underwear. WCBS 2 reports the incident occurred at 2:25 a.m. yesterday morning: "Police said a man tried to sexually assault a woman at knifepoint inside a subway station... The woman was allegedly attacked while sitting on a southbound F train at 2:25 a.m. at the Fort Hamilton Parkway station." Police do not think that this incident is connected to the serial sexual assaults in Park Slope, Sunset Park and Bay Ridge.

The suspect put his hand on the victim's neck and, while wielding a knife, he "allegedly took her pocketbook, which had an iPhone and money in it. Police said the suspect then demanded the victim remove her underwear, but no sexual assault was committed."

The suspect is described as a black male, approximately 45-50 years old, 5' 10" and 200 pounds, with a bald head, stocky build and scruffy facial hair.