Police in Canada are conducting an investigation after what they called a "bizarre" car crash on a rural road in Nisku, south of Edmonton, Alberta.

Royal Canadian Mounted Police Corporal Laurel Scott says a car collided with a truck on Monday.

When the police arrived at the scene, all five people in the car were naked.

Police also told AP the car crash appeared to have been a "purposeful collision".

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Scott called the incident "very bizarre".

"We are trying to sort through all the different information we have so we can figure out from start to finish what this incident is all about."

It is not yet known which charges the naked people will face.