An impaired driver was caught speeding — at 175 km/h — on a highway near St. John's Tuesday afternoon.

The Royal Newfoundland Constabulary said in a Facebook post that a 20-year-old driver, who was carrying two other males in his vehicle, was caught after he sped past a police officer on Pitts Memorial Drive just after noon Tuesday.

The driver was stopped near Richard Nolan Drive in Mount Pearl.

RNC spokesperson Cst. Geoffrey Higdon said the driver pulled over voluntarily on the highway.

The Conception Bay South man was found to be over the legal alcohol limit, and was charged with impaired driving. 

"With 47 fatalities on our province's highways in 2015, attitudes need to change," the RNC said on Facebook. 

"Luckily, this driver was apprehended before something catastrophic occurred."

At 175 km/h, the man was driving more than 70 km/h over the legal speed limit on Pitts Memorial.

Higdon said the incident took place just two days after a woman walked away from a dramatic single-vehicle crash on Pitts Memorial this weekend.

One eyewitness to that accident estimated the woman was travelling at 160 km/h.