Two people were injured Tuesday morning when their SUV crashed after Herndon police had broken off a chase of the vehicle, police said.

A Herndon police officer attempted to stop the SUV for a traffic violation about 7:15 a.m. in the 300 block of Herndon Parkway, Herndon police said.

The driver refused to stop, so the officer turned on his lights and sirens and pursued the SUV north on Herndon Parkway toward Dranesville Road, police said.

The officer broke off the chase prior to approaching Herndon High School, and the SUV continued north on Dranesville Road at high speed, police said.

The SUV ran a red light at Dranesville Road and Wiehle Avenue and struck a vehicle, police said. The SUV then flipped over several times.

The driver of the SUV and a passenger were transported to the hospital with unknown injuries, police said. No one else was hurt in the crash.

The Fairfax County Police Accident Reconstruction Unit is investigating the crash.

The chase lasted less than five minutes, police said. The distance between the spot where the officer attempted to pull over the vehicle and Herndon High School is roughly a mile and a half.

Police said it is too early to say whether the officer followed proper procedure during the chase.