A man in his 20s suffered serious injuries when he was stabbed multiple times during a break in early Monday morning in the Vanier neighbourhood.

The Ottawa Police Service's robbery unit said two suspects entered an Ottawa Community Housing property on Richelieu Avenue around 3 a.m.

One of the suspects stabbed the man multiple times in his chest and arm, according to police.

He was taken to hospital where he was listed in serious but stable condition.

Officers said the other suspect had a handgun and confronted another occupant, but that second person wasn't hurt.

One of the suspects is described as a white man with a "man bun," who was wearing dark clothing at the time of the incident.

Police describe the other suspect as a black man with a noticeable scar on his face, with dark pants with white stripes on the sides.

Officers said the suspects fled in a black four-door sedan, possibly a Toyota.

They said a white woman followed the two suspects into the building and they're asking her to contact police.

Anyone with information is asked to call the Ottawa police's robbery unit at 613-236-1222, ext. 5116. Anonymous tips can be submitted by calling Crime Stoppers toll-free at 1-800-222-8477 (TIPS).