In pictures: US base shooting

Staff Sgt John Robertson waits in a car park outside Fort Hood military base about the shooting there, 2 April 2014.

The US military base in Fort Hood, Texas, has been the scene of another deadly shooting, more than four years after an army psychiatrist killed 13 people there.

Lt Gen Mark Milley speaks to reporters outside Fort Hood military base following the shooting there on 2 April 2014

Fort Hood commanding officer Lt Gen Mark Milley said that on Wednesday a soldier had shot dead three colleagues before turning his gun on himself.

Vehicles are checked outside Fort Hood military base after the shooting there, 2 April

After the shooting broke out police secured the base and blocked entrances.

Luci Hamlin and her husband Specialist Timothy Hamlin wait to get back to their home on base at Fort Hood, Texas, 2 April

The motive for the attack is unclear, but officials say there is no indication of terrorism. The gunman, who had served in Iraq, was being treated for depression.

US President Barack Obama arrives on Air Force One at Andrews Air Force Base near Washington DC.

President Barack Obama said he was "heartbroken" by another shooting at the Fort Hood base.

Military personnel wait after the Fort Hood shooting, 2 April

The assailant went to two buildings on the base and opened fire, before being confronted by military police and taking his own life.

US Secretary of Defense Chuck Hagel speaks about the shooting at Fort Hood on the flight deck of USS Anchorage in Honolulu, 2 April

It is the third shooting at a US military facility in eight months. Defence Secretary Chuck Hagel said steps had been taken to improve security, but more needed to be done.

More on this story