Airdrie RCMP responded late on Thursday night to a serious motor vehicle collision on the QEII just North of the Balzac overpass. 

EMS confirmed that STARS air ambulance was dispatched to the scene, though no other details were available. 

Traffic northbound on the QEII was blocked and diverted at the overpass. There were road closures for several hours though traffic flow resumed on Friday morning. 

There is no word on the extent of injuries as police continue to investigate. 

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