UPDATE -- Taimoor Najam was acquitted of charge relating to this incident.

OTTAWA -- Police have arrested a 20-year-old Ottawa man accused of sexually assaulting a sleeping woman on a bus travelling from Toronto to the capital.

Investigators say the woman realized what was happening when she woke up around 8:30 p.m. Monday.

They say the suspect was arrested after the bus arrived at the Ottawa terminal.

Taimoor Najam is charged with sexual assault.

He was released from custody and his next court appearance is scheduled for April 13.