It has been a dangerous long weekend on Saskatchewan roads, leaving three people dead and many others in hospital.

Deadly Highway 1 crash

The driver of a semi tractor is dead and another person is in hospital after the vehicle rolled off an overpass on the Trans-Canada Highway at Swift Current.

It happened at about 1:20 a.m. CST Sunday morning. Police have not released any details about what happened.

The westbound lane has been closed because of the collision and traffic is being diverted using the Highway 1 off-ramp through Swift Current. 

Fatal Regina crash

A 20-year-old woman was killed and a man is in hospital after a crash between a car and a truck at Wascana Parkway and Wascana Drive at 1 a.m. Sunday morning.

Police said a 31-year-old man was driving a black truck northbound on Wascana Drive and tried to avoid a vehicle operated by a woman making a left turn southbound onto the same street.

The truck ended up T-boning the car and both vehicles ended up in the northwest corner of the intersection, police said.

A man who was a passenger in the woman's car was taken to Regina General Hospital with serious injuries.

The name of the woman has not been released.

The truck driver was arrested and charged with impaired driving.

Hit and run victim found dead

A 24-year-old man from Poundmaker First Nation died in a hit and run on the reserve.

Police were responding to another matter when they discovered the man's body on the South Access Road on the reserve at 4:30 a.m. Saturday.

The man was pronounced dead at the scene.

RCMP are investigating and looking for a suspect vehicle.

Meanwhile, a hit and run in Saskatoon has put a 22-year-old man in hospital.

The collision happened at about 11 p.m. Saturday when the man was walking southbound through the intersection of Avenue J and 22nd Street at a well-lit crossing.

Police said the man was extremely drunk and investigators had a hard time getting details about what happened.

Officers determined the man had been stuck by what he described as a light-coloured car. He was thrown over the vehicle and landed on the centre median.

Police said the car drove northbound on Avenue K without stopping.

The investigation continues.

Three Saskatoon motorcycle crashes 

Three separate motorcycle crashes in Saskatoon have put three people in hospital.

The latest happened at about 1 a.m. CST Sunday when a Saskatoon man on a motorcycle on 22nd Street at Avenue P was hit by a vehicle trying to make a left turn.

The 50-year-old driver of the motorcycle was taken to hospital with serious, but non-life threatening injuries. The 55-year-old man driving the car was not hurt.

So far, no charges have been laid.

Police are also investigating another crash at 19th Street and Avenue A that happened at about 7 p.m. CST Saturday.

A 33-year-old motorcyclist from Alberta was struck by a car driven by a 72-year-old woman trying to make a left turn off of 19th Street.

The motorcyclist was taken to hospital by ambulance to be treated for non-life threatening injuries.

Police said charges are pending.

The third crash between a motorcycle and a car happened Saturday at about 1 p.m. CST south of Highway 11 and the Circle Drive overpass.

The person on the motorcycle was taken to hospital with life-threatening injuries. There is no word on their condition.