A Kanata man is charged with four counts of sexual assault after a series of incidents involving women who use OC Transpo.

All four cases involved women waiting or already riding an OC Transpo bus in Kanata over the last three weeks.

Sameh Tawfik Nasr, 38, was arrested in connection with the incidents on Friday. He made his first court appearance in Ottawa on Monday.

Anyone with information about the incidents is asked to contact Ottawa Police at 613-236-1222, ext. 5944 or Crime Stoppers at 613-233-TIPS.