RCMP in Prince Albert, Sask., say they've never seen anything like it — a speeding pickup truck was pulled over Tuesday with 17 people aboard.

"It's hard to believe what you're seeing, that anyone would take that kind of risk," Staff Sgt. Stéphane Caron said. "They were piled on top of each other … very unsafe situation."

An investigation is underway and charges are pending following the incident on Highway 2, about seven kilometres north of Prince Albert.

At around 3:18 p.m. CST, police clocked a vehicle going 136 km/h in a 100 km/h zone.

Officers were astonished by what they saw when they pulled the truck over.

They were piled on top of each other ... very unsafe situation. — RCMP Staff Sgt. St é phane Caron

In the extended cab of the truck, which includes a front and back seat, there were 14 people — three adults, 10 younger children and one teenager.

Three other children were in the box of the truck, police said, hiding under blankets.

The ages of the children range from 10 months to 14 years.

Police seized the vehicle and brought in three taxis and a tow truck to take the occupants to their destination.

The truck will be impounded for 30 days, police said.

Caron said he's never seen anything this extreme, but it's not clear yet what charges the driver might face.

"Because it is such a marked departure from what we normally see, we are in consultation with the Crown," he said. "This is not your normal traffic ticket."