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IONIA, Mich. — Two armed Michigan drivers died after they apparently “stood their ground” against each other Wednesday.

Police are investigating the shooting on the M-66 highway as a road rage incident, WZZM reported.

Witnesses told the station that one man was following another man’s car too closely. After some hostilities, the first driver pulled into a car wash parking lot and the other driver parked near him.

The driver of the following car drew a gun, prompting the other man to do the same. They both opened fire, killing each other. The driver of the following car appeared to have fired first, police said.

Authorities say both men, ages 43 and 56, were licensed to carry concealed weapons.

People at a nearby laundromat found both men laying on the ground and performed CPR, but were unsuccessful in keeping them alive.

Read the full story at WZZM.com