Calgary police are looking into a serious crash between a cube van and a motorcycle that sent two men to hospital on Sunday afternoon.

Police were called to a hit-and-run collision in the intersection of Tache Avenue and Centre Street North at about 3:30 p.m. Sunday.

Investigators say a 2008 Honda CBR600 motorcycle, carrying two men, was travelling southbound in the left lane of Centre Street when it was hit by a van that was eastbound on Tache Avenue N.W.

Police say the driver of the cube van advanced onto Centre Street against a stop sign and then turned left to head north.

The motorcycle struck the driver’s side and both men were ejected from the bike which then skidded southbound on its side for about 17 metres.

The cube van fled the scene northbound on Centre Street but police were able to catch up with the driver a short time later.

The driver of the van was released without charges, pending the outcome of the investigation.

The 32-year-old driver of the motorcycle suffered life-threatening injuries and the 21-year-old passenger sustained serious injuries. Both remain in hospital.

The 32-year-old driver of the cube van was not injured.

The CPS Traffic Section is investigating.