The Allen County Sheriff's Department said a patrol vehicle was driving about 9:20 p.m. Saturday near Wallen and Lima roads in Fort Wayne, when a truck turned directly in front of it.
It was a significant crash, the sheriff's department said.
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The truck drove away.
Police said it was a dark-colored Ford F-250 or F-350 with a red plow on the front and salt spreader on the back.
Anyone with information is asked to call the sheriff's department at () -. Tips can remain anonymous.
Police did not immediately provide any additional information about the driver or the officer's condition.