Cyclist critically injured near Christchurch school

A cyclist has been critically injured in a crash near a Christchurch school.

Emergency services were called to the incident near Merrin School on Merrin St about 11.40am on Thursday.

A St John spokesperson said an ambulance and rapid response vehicle responded to the crash.

One patient was transported to Christchurch Hospital in a critical condition, the spokesperson said.

It is understood the cyclist hit the door of a vehicle.