Two teens are dead after their snowmobiles crashed head-on in southern Saskatchewan.

RCMP were called to the collision, about five kilometres east of Southey along Highway 22, around 9:45 p.m. Friday. A 15-year-old boy riding west in the north ditch collided with a 19-year-old man who was riding east.

The two crashed near the top of an approach, RCMP said.

First responders were performing CPR on the riders when police arrived, but the two were pronounced dead at the scene a short time later.

Witnesses told police both riders consumed alcohol prior to the collision.

The 15-year-old, from Southey, was riding with one other snowmobiler at the time of the crash. The 19-year-old, from Markinch, was riding with two others.

A coroner has ordered an autopsy on the teens.

Their names have not yet been released.

Southey is located about 60 kilometres north of Regina.