An 11-year-old girl was allegedly groped at knife-point aboard a Bronx train by a man still on the loose, police told the New York Post. 

The sexual abuse is reported to have happened at 3:27 p.m. Oct. 18 on a northbound number 4 train approaching the East 149 Street-Grand Concourse train station, NYPD Crimestoppers said on Facebook.

The man, depicted in a sketch shared Wednesday, supposedly flashed a knife and told the girl in Spanish to be quiet.

"He then caressed the girl’s leg, waist and buttocks," according to the Post. 

NEW YORK CITY SUBWAY RIDER STABBED IN BACK BY MAN AFTER WALKING AWAY FROM AN ARGUMENT: POLICE

Subway creeper NYPD

NYPD is searching for a man accused of groping a girl at knifepoint on a subway. (NYPD Crimestoppers)

The suspect is described as being about 40 years old and five feet tall. He got off the train at the 161st Street-Yankee Stadium train station, the newspaper reports.

ADAMS DOWNPLAYS LATEST NYC SUBWAY ATTACK AS OUTLIER, SAYS MAJORITY OF RIDERS COMMUTE 'WITHOUT ANY ENCOUNTERS'

Turnstiles at Yankee Stadium subway station

Turnstiles at Yankee Stadium subway station, where a suspect who allegedly groped a girl on a train reportedly got off. (Peter Gerber)

The girl did not report any physical injuries.

CLICK HERE TO GET THE FOX NEWS APP

NYPD is offering a reward of up to $3,500 for information. Anyone with information can call 1-800-577-TIPS (8477).