The tragedy happened last night on the A1139 Frank Perkins Parkway in Peterborough, where a car crashed into the Eye roundabout.
Three people inside the car died at the scene, Cambridgeshire Live reports.
Emergency services cordoned off surrounding roads after the crash, at 11pm.
A Cambridgeshire Police spokesman said: “We were called at about 11pm yesterday to a serious collision on the Frank Perkins Parkway in Peterborough.
“A car had left the road and come to rest on Eye roundabout.
“The three occupants of the car died at the scene.”
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