Three detainees shot at ICE facility by 'possible sniper'

Three detainees at a federal Immigration and Customs Enforcement (ICE) field office in Dallas have been shot by a "possible sniper".

Two of the three victims have died, an ICE spokesperson said. The third person is in hospital.

The three people shot do not include the gunman, who is dead from a self-inflicted gunshot wound.

The gunman was found dead on the roof of a nearby building, local ABC affiliate WFAA reported, citing sources.

"Preliminary information is a possible sniper," ICE acting Director Todd Lyons told CNN.

The field office is where people are processed and where agents decide whether to release individuals or hold them, according to ICE.

The victims were being led into the building to be processed and repatriated, Fox News reported, citing Dallas police Department sourc