Edmonton police are investigating after two people suffered serious injuries following a pair of unrelated collisions on 118 Avenue overnight.

The first incident took place in the area of 118 Avenue and 81 Street at about 11 p.m. Monday, when a cyclist travelling northbound on 81 Street entered an intersection, and was hit by a westbound van.

Paramedics treated the man, who police said was in his 20s or 30s on the scene, before rushing him to hospital with life-threatening injuries.

Less than an hour later, a woman was hit in an alleged hit-and-run in the area of 78 Street and 118 Avenue.

The woman was also treated on the scene, and rushed to hospital with serious injuries.

As a result of the collisions, a section of 118 Avenue between 77 and 82 Streets was closed for several hours early Tuesday morning.

It’s not clear if charges could be laid.

Anyone who may have witnessed either incident is asked to call the Edmonton Police Service non-emergency line at 780-423-4567 or #377 from a mobile phone.

Anonymous tips can be submitted to Crime Stoppers by calling 1-800-222-TIPS (8477).