Late Thursday night a gunman at a FedEx warehouse in Indianapolis shot and killed 8 people while injuring dozens of others before killing himself.

The shooting was reported at the FedEx facility after 11 p.m. and officers arrived at an active shooter situation, police spokeswoman Officer Genae Cook told reporters, NBC reports.

Officer Cook told the media that the gunman killed himself at the scene. While searching the facility, officers found eight people deceased with injuries consistent with gunshot wounds. 

“I am heartbroken by the mass shooting at the FedEx facility here in Indianapolis and praying for all affected by this tragedy,” said U.S. Congressman André Carson, a representative for Indiana.

“I am communicating with local authorities to get all details of the attack and my office stands ready to help everyone affected in any way we can.”

A FedEx spokesman said they as a company were working to gather more information and were cooperating with local authorities.

Family members gathered at a nearby hotel to await more information.  WTHR-TV reported that some employees at the facility are not permitted to carry their cell phone, making it difficult to contact those who left their phone behind. 

AP reports live video from news outlets at the scene showed crime scene tape in the parking lot outside the facility.

A witness who said he works at the facility told WISH-TV he saw a man with a gun after hearing several gunshots.

“I saw a man with a submachine gun of some sort, an automatic rifle, and he was firing in the open,” Jeremiah Miller said.

Another man told WTTV his niece was sitting in the driver’s seat of her car when the gunfire erupted, and she was shot.

“She got shot on her left arm,” said Parminder Singh. “She’s fine, she’s in the hospital now.”

AP contributed to this story