Ottawa police have charged a man in connection with a sexual assault at the Blair Road transit station.

Police said around 5 a.m. on Aug. 11, a young woman was sitting at the station when a group of young men approached her and offered her cash in exchange for sex.

When the victim refused, she said she was led to a secluded area beside James Naismith Road where she was robbed and sexually assaulted.

A security guard heard her screams and called police.

3 suspects still at large

Police have charged a 19-year-old Ottawa man with aggravated sexual assault, forcible confinement, failing to comply with judicial release, sexual interference, invitation to sexual touching and intimidation.

He is scheduled to appear in court Thursday.

Police have also released security camera images of three other suspects. All are black males between 18 and 20 years old, six feet tall with short black hair. Some spoke English, others spoke an unknown foreign language.

Anyone with information is asked to contact Ottawa police at 613-236-1222, ext. 5944 or phone Crime Stoppers at 613-233-8477.