World Bulletin / News Desk

A French soldier on anti-terrorist duties was stabbed in the neck Saturday in an attack that President Francois Hollande said could not "at this stage" be linked to the brutal murder this week of a military man in London.

The attacker fled the scene after stabbing the 23-year-old in the late afternoon in La Defense business district, which at weekends is packed with shoppers.

The local prosecutor's office said anti-terror investigators would handle the probe into the attack which was captured by surveillance cameras.

The soldier was in uniform and armed and was patrolling as part of France's Vigipirate anti-terrorist surveillance scheme that sees troops deployed at high-profile tourist, business and transport sites across the capital

The attacker, described by police as around 1.9 meters (six foot) tall, bearded and wearing a jersey and black trousers, approached his victim, stabbed him and then melted into the crowd without saying a word.

The soldier was with two colleagues on the patrol in a busy underground space that hosts shops and provides access to several underground train lines.

Hollande told reporters accompanying him on a trip to Ethiopia: "We still do not know the exact circumstances of the attack or the identity of the attacker, but we are looking at all options."

"I do not think that at this stage a link can be made" to the attack in London on Wednesday, he said.

That assault saw a soldier hacked to death on a London street by two men wielding knives and a cleaver who later launched into a tirade against British military involvement in Muslim countries.

Defence Minister Jean-Yves Le Drian visited the wounded soldier in hospital and later told reporters that the man had been targeted because he was a soldier.

Police sources said the victim would survive the attack but gave no information on possible motivation for the assault.

Prosecutor Robert Gelli said the attacker struck the soldier from behind with a sharp metal object, but he did not confirm earlier reports that the weapon used was a box cutter.