UPDATE: Suspect in Atlanta warehouse shooting is dead

Police swarmed a FedEx warehouse outside Atlanta after shots rang out around 6:00am Tuesday

Police swarmed a FedEx centre where a shooter opened fire Tuesday morning, injuring at least six people at the package-sorting station north of Atlanta.

Cobb County police spokesman Michael Bowman said a suspect died of a self-inflicted gunshot wound but police are still sweeping the package-sorting facility north of Atlanta to make sure there are no other threats.

An active shooter at the suburban facility was reported to police around 5:54 a.m., Bowman said.

``The area around the building has been secured and the officers are now clearing the incident location,'' Bowman said in an email. ``This is still an active and fluid situation.''

Six people wounded at the FedEx station were taken to nearby Wellstar Kennestone hospital. One of them had injuries that were ``possibly critical,'' Marietta police spokesman David Baldwin said.

FedEx said the facility north of Atlanta is a hub where packages are sorted and loaded onto vehicles for delivery. It's located next to the general aviation airport for suburban Cobb County.

The company was co-operating with police but had no details to release about the shootings Tuesday morning.

``We are aware from the authorities of the situation,'' said Scott Fiedler, a FedEx spokesman. ``Our primary concern is the safety and wellbeing of our team members, first responders and others affected.''