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A gunman killed three people and wounded two others at a Penske truck rental business in Kennesaw Tuesday afternoon.

Police took the gunman into custody outside the business.

The gunman, dressed in camouflage, entered Penske Truck Rental & Leasing at 3011 Barrett Lakes Boulevard just before 2 p.m. and opened fire, according to police.

"He opened fire, striking the victims," said Cobb County police spokesman Joe Hernandez.

All of the victims were in a warehouse section of the business when they were shot.

Police arrested the gunman minutes later on Chastain Road. Police could be seen towing a red pick up truck they said belonged to the gunman from the scene.

"He was taken into custody without incident," said Hernandez.

The victims were taken to Grady Memorial Hospital, Atlanta Medical Center and WellStar Kennestone Hospital.

Please refresh this developing story for updates.