PARIS: A French soldier was stabbed in the throat in a busy commercial district outside Paris on Saturday, and the government said it was trying to determine if there were any links to the brutal killing of a British soldier.

French President Francois Hollande said the identity of the attacker, who escaped, was unknown and cautioned against jumping to conclusions about the assault on the uniformed soldier in the La Defense shopping area.

The life of the 23-year-old soldier was not in danger, the Interior Ministry said in a statement.

On Wednesday, British soldier Lee Rigby, 25, was viciously stabbed on a London street in broad daylight in a suspected terrorist attack that has raised fears of potential copycat strikes.

The French soldier was on a group patrol as part of a national protection program when he was attacked from behind, prosecutor Robert Gelli told Europe 1 radio.

The assailant did not say a word, Gelli said.

''There are elements, the sudden violence of the attack, that could lead one to believe there might be a comparison with what happened in London,'' Interior Minister Manuel Valls told France 2 television. ''But at this point, honestly, let us be prudent.''

Rigby was attacked while walking outside the Royal Artillery Barracks in the Woolwich area of south London.

The gruesome scene was recorded on witnesses' cellphones, and a video emerged in which one of the two suspects, his hands bloodied, boasted of their exploits and warned of more violence as the soldier lay on the ground.

French security forces have been on heightened alert since their country launched a military intervention in the African nation of Mali in January to regain territory seized by Islamic radicals.

British Prime Minister David Cameron was himself in Paris meeting with Hollande when he first received word of the London attack.

Last year, three French paratroopers were killed by a man police described as a French-born Islamic extremist who then went on to strike a Jewish school in the south of France, killing four more people.