Investigators believe the motorcycle lost control and crashed into a vehicle, causing the rider to fall off the bike and slide into neighbouring lanes of traffic.

A cyclist was taken to hospital Tuesday morning after a collision on Memorial Drive and Edmonton Trail. 

The drive of the car that struck him stayed at the scene, officials said. 

A total of $1.4 billion has been set aside by the provincial government for the construction of Calgary's ring road.

Calgary police say one driver was killed and another was seriously injured in two collisions that happened within an hour of each other on Thursday.

Alberta EMS said paramedics were called to the scene at about 10:30 a.m. Monday in the community of Deer Run.

Police said witnesses reported seeing the woman steal the vehicle and drive it out onto the street, where she struck the man. 

Calgary officers responded to a crash on Macleod Trail at 50 Avenue S.W. on Friday.

Calgary police are looking to speak with a number of people who were in a Chevrolet Tahoe that was seen at a home in the Saddleridge both before and after the collision.

A woman was taken to hospital with life-threatening injuries late Wednesday afternoon after a truck hit the car she was in at a northwest Calgary intersection, police said.