STATEN ISLAND, N.Y. -- A 16-year-old girl was robbed at gunpoint while waiting for a train in Great Kills, according to police.

The suspect remains at large and the investigation continues into the armed robbery that occurred at about 9:45 a.m. on Thursday in the vicinity of Baltimore Street and Rhett Avenue, said a spokesman for the NYPD's Deputy Commissioner of Public Information.

The victim told police that she was walking around waiting for the train that she intended to take from the Great Kills Station when she was approached from behind and struck in the head.

She turned around and the suspect, who brandished a firearm, asked, "What's in your bag?"

The teen surrendered her black and gray Coach wallet that contained her school ID, about $7 in cash, her student MetroCard, a ring valued at around $200 and a prayer card, police said.

Police described the suspect as a white male about 5'8" tall and weighing about 210 pounds. He had a light complexion and green eyes.

No injuries or hospitalization are listed in the police report.

The teen attends a school on Staten Island.

The robbery did not occur on MTA property, said a spokeswoman, who referred the Advance to police.

Many Staten Island Railway riders use a walkway into the Great Kills train station that starts at Baltimore Street and Rhett Avenue. The walkway has a stone wall on one side that is marred with graffiti and a fence on the other. Stairs that lead to the passageway no longer are in use and have been fenced in due to their state of disrepair.