Fort Hood gunman regains consciousness

The suspected shooter said to have killed 13 people and wounded 30 others on a US army base has regained consciousness and is talking, a hospital official has said.

The spokesperson did not say whether Nidal Malik Hasan, who was shot by a civilian police officer as he allegedly opened fire in a packed troops processing center in Fort Hood, Texas on Thursday, was talking to army investigators.

An Army probe is struggling to uncover whether Hasan -- a Muslim who is believed to have been the lone gunman -- snapped under the pressure of his job as an army psychiatrist or whether he was motivated by deeper convictions.