Ottawa police are investigating two overnight stabbings that happened within the span of a few hours — including one that left a man in his 20s with serious injuries.

At around 10:36 p.m. Friday night, police were called to Spruce Street near Rochester Street in Ottawa's Centretown neighbourhood.

The man was rushed to the Ottawa Hospital with serious injuries. Police confirmed the stabbing took place in that area.

On Saturday morning police were called to Iris Street and Elmira Drive, where officers found a second man with stab wounds.

The man was also taken to hospital, but with non-life-threatening injuries.

No suspects in custody

Police say the second stabbing happened either late Friday night or early Saturday morning.

There are currently no suspects in custody in either of the stabbings, and police said they do not appear to be related.

Investigations are ongoing.