NEW YORK -- The NYPD is investigating after several reports of police impersonations across the city.
The first incident happened around 7:40 p.m. Tuesday, Aug. 30.
An 18-year-old girl told authorities that when she entered the subway station at Westchester Avenue and Grant Circle in the Bronx, a man approached her and claimed to be a police officer. He told her she had illegally entered the subway and that he was going to issue her a summons.
The man then allegedly added he would not give her a ticket if she performed a sexual act. The victim declined and the man fled.
He's described as 5 feet, 3 inches, 220 pounds and bald.
Two additional incidents happened a week later involving police impersonators allegedly robbing two taxi drivers on the same night in the same area of Long Island City.
The first incident happened around 10:30 p.m. Thursday in front of 39-35 27th St. where a 55-year-old man was driving a taxi northbound on 27th Street when he was pulled over by two men claiming to be police officers.
One man said he was going to search the vehicle as the second suspect approached from behind. One was wearing a light blue bullet resistant vest with the word "Police" on it.
The men let the taxi driver go when the customer in the backseat asked them if they were really the police. They fled in an unknown direction without taking anything.
Another incident happened just an hour later about a block away at 39-50 crescent street.
Police say a taxi was traveling southbound on Crescent around 11:30 p.m. when two men approached the vehicle, one wearing a police uniform.
The man in uniform claimed to be a police officer and asked the driver to step out of the vehicle as as the second man began rummaging through his belongings.
The two suspects then reportedly sprayed the taxi driver with pepper spray and ran away with his wallet, credit cards and $20.
The victim told police he saw a third suspect on the corner who fled the area with the two initial suspects.
Anyone with information in regards to this incident is asked to call the NYPD's Crime Stoppers Hotline at 1-800-577-TIPS (8477) or for Spanish, 1-888-57-PISTA (74782).
The public can also submit their tips by logging onto the Crime stoppers website at WWW.NYPDCRIMESTOPPERS.COM or by texting their tips to 274637 (CRIMES) then enter TIP577.