Police are asking for witnesses to a serious collision that sent two adults to hospital, and involved two children, on Friday night.

The Winnipeg Police Service says in a release that emergency crews were called just before 9:30 p.m. to the area of Henderson Highway and McIvor Avenue for a report of a two-vehicle collision.

A man who was driving one of the vehicles was taken to hospital in critical condition, where he remains Saturday afternoon.

A woman who was a passenger in the second vehicle was also taken to hospital in stable condition. Police say that she was treated and released. Two young children from the same vehicle were assessed and treated at the scene by the Winnipeg Fire Paramedic Service members. The children did not require transport to hospital.

According to witnesses Henderson Highway was closed off for several hours while police investigated the scene of the crash.

The WPS Traffic Division is continuing with the investigation and is asking that anyone with information regarding the matter, or that may have witnessed the collision, contact investigators at 204-986-7085.