Multiple people have been shot and others wounded after a gunman entered a FedEx warehouse near Indianapolis International Airport.
There are reports that four people have died, although fatalities have not yet been confirmed by the authorities.
Police have confirmed that there are ‘multiple victims at the scene’ following the shooting on Thursday night, (April 15) 11pm local time (4am GMT).
911 calls claim people heard shooting outside and inside the building, with workers hiding inside by the conveyor belt.
A worker at the scene told Wish-TV news: “I saw a man with a submachine gun of some sort, an automatic rifle, and he was firing in the open.”