A Baltimore man was killed Sunday in a wrong-way crash in Calvert County after fleeing from a state trooper, authorities said.

The trooper tried to stop the man’s car in the Prince Frederick area after seeing it traveling north on Route 4 without a front license tag, the Maryland state police said.

The car, a Mitsubishi, pulled to the shoulder at first, but then sped up and fled. Eventually, the car began driving south in the northbound lanes, swerving back and forth, police said.

Once the car began heading in the wrong direction, the state police duty officer at the Prince Frederick barrack ordered the chase ended. Moments later, police said, the Mitsubishi, which was going against traffic, struck a northbound car.

Both motorists were flown by helicopters to the Prince George’s Hospital Center. The name of the man who died was withheld until his relatives could be notified, police said.

It was not immediately known why the Baltimore man had refused to stop for police.

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