Eight people were killed in a shootout at a FedEx facility in Indianapolis.
More people were reportedly injured and transported to various hospitals in the region following the incident on Thursday evening.
The shooter is among the dead after taking his own life and police said they believe there is no longer an active threat to the community.
Footage from the scene shows a police gang in the parking lot outside the facility and several emergency service vehicles.
Family members gathered at a local hotel to await news from loved ones.
A witness, who said he worked at the facility, told WISH-TV that he saw a man with a gun after hearing several shots.
“I saw a man with some kind of machine gun, an automatic rifle, and he was shooting in the open,” Jeremiah Miller said.
Another witness said her niece was sitting in her car when the shooting started.
“She was shot in the left arm,” said Parminder Singh. “She’s fine, she’s in the hospital now.”
Her niece had said she didn’t know the shooter.
The FedEx facility is close to the Indianapolis International Airport.
A spokesperson for the delivery service said the company was aware of the incident and “was working to gather more information.”