The woman was reportedly exiting the station at Wycoff Avenue and George Street through the high turnstile exit when a suspect, armed with a screwdriver, grabbed the bars and trapped the woman inside.
He then stole the victim's property and fled in an unknown direction.
The suspect is described as a black man between the ages of 40 and 45. He is approximately 6-foot tall.
Anyone with information is asked to call the NYPD's Crime Stoppers Hotline at 800-577-TIPS.
Citizens can also submit their tips by logging onto the Crime Stoppers Web site at NYPDCrimeStoppers.com or by texting their tips to 274637(CRIMES) then enter TIP577.
NEW YORK AND TRI-STATE AREA NEWS