THE BRONX - Police are asking for help finding a man wanted for attempted rape in the Bronx. 

Authorities are sharing surveillance video of the suspect, who they say followed a 26-year-old woman into her apartment building near Wales Avenue and East 151st Street. 

According to detectives, the man grabbed her by the neck in a stairwell and demanded that she take off her pants. When she refused, he ran off. 

The suspect is believed to be about 25 years old. Anyone with information is urged to call Crime Stoppers at 1-800-577-TIPS