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PARKER, Colo. — Police are investigating what witnesses said a road rage incident led to a shooting near South Parker Road and E-470 on Tuesday.

The incident led to one man being injured and a security scare at Parker Adventist Hospital, the Parker Police Department said.

Shots were fired during the road rage, forcing the hospital into a Code Silver — described as a restricted-access lockdown.

Most entrances were closed for about one hour as police responded, according to a hospital spokeswoman.

The victim’s pickup truck was found at Parker Adventist’s main entrance. Police said the road rage was reported just before 5:30 p.m.

A witness told police that shots were fired from the suspect’s pickup with two people inside. The shots created panic on the side streets near the hospital and concern inside the hospital.

“I feel like people just kind of kicked into gear,” a hospital spokeswoman said. “We shut all the doors. I feel like people were actually pretty calm.”

The victim has nonlife-threatening injuries, police spokeswoman Penny McLean said.

Staffers said they thought there might have been an active shooter at the hospital, but that was never the case.

Police don’t have a good description of the suspect but said the suspect vehicle is a newer model extended cab pickup truck.

The truck is dark gray or black with very dark tinted windows, police said.