The Muslim US major who went on the rampage at Fort Hood army base killing 13 people was a known problem who should have been spotted, a new report says.

The Fort Hood shootings suspect will be examined next month to determine his mental state that day and whether he is competent to stand trial.

A US Army psychiatrist accused of killing 13 people in an attack on his Texas base will probably plead not guilty and may use an insanity defence at his military trial, his lawyer said.

The American Army Major, charged with shooting 13 people dead at an army base, is apparently paralyzed from the chest down.

The US Army will conduct an internal investigation to examine whether it missed warning signs about Major Nidal Malik Hasan, the man accused of killing 13 people in the November 5 shooting spree at Fort Hood, Texas, two newspapers reported.

The lawyer for the Army psychiatrist accused of killing fellow soldiers at Fort Hood says doctors have told the soldier he may be paralysed from the waist down.

Accused Fort Hood shooter Major Nidal Malik Hasan was coherent during his first meeting with his defence lawyer in a hospital intensive care unit.

The military psychiatrist accused of killing 13 people in a shooting rampage at a US army base was charged today with multiple counts of premeditated murder.

A US Army major is expected to be charged with 13 counts of murder over a shooting rampage at a base in Texas.

US federal agencies are blaming each other over security lapses involving the Fort Hood massacre gunman Nidal Hasan.

The FBI knew that the US officer who massacred 13 people at the Fort Hood base had repeated contact with a radical imam overseas.

President Barack Obama will lead mourners at a memorial service held today for the 13 victims of America’s worst shooting atrocity to take place at an army base.

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.

US Army officials say the man who killed 13 people during a shooting spree at Fort Hood has been taken off a ventilator but still remains in intensive care.

The military psychiatrist responsible for a shooting spree that left 13 dead remained in a coma today, frustrating attempts to work out what made him kill.

A US officer who killed 13 soldiers in a gun rampage at a Texas army base shouted a triumphant Islamic proclamation before opening fire, it was claimed today.

The Texas army camp massacre gunman was being investigated for possible links to an extremist website, it emerged today.

A military psychiatrist who killed 13 people in a gun rampage on a US army base was being held in hospital under armed guard today.

A military psychiatrist went on the rampage at an army base in the US, shooting dead 13 and injuring dozens more.

President Obama has described a mass shooting at an army base in Texas as a horrendous outburst of violence.