A truck driver from Texas watched his semi burn to the ground Thursday night after a suspected drunk driver allegedly caused a head-on collision near Ralph, Sask.

RCMP said the collision between the southbound semi tanker truck and a northbound sport utility vehicle happened around 10:40 p.m. on Highway 39, just south of the village in the southeast part of the province.

Inside the truck was the driver, 56, and a passenger, 52, both from Texas.

Police believe the driver of the SUV crossed over the centre line into the semi's path. After being hit, the big truck went into the north ditch where it caught fire. The tanker-trailer was empty.

The 29-year-old Weyburn woman behind the wheel of the SUV received minor injuries and was taken by ambulance to Weyburn General Hospital.

The two Texans were able to escape without injury before the front of the truck became fully engulfed in flame and burned. Fire crews were able to save the tanker-trailer.

It's alleged the woman driving the SUV was impaired by alcohol, the RCMP said. Charges are pending.

SUV in crash near Ralph, Sask.

Police allege the driver of this SUV that crashed into a semi-truck on Highway 39 on Thursday was impaired. (RCMP)