PARIS (Reuters/AFP) - The death toll from several attacks across Paris on Friday (Nov 13) could reach over 120, and at least five of the assailants have been killed, Paris Public Prosecutor Francois Molins said on television.

Four men who attacked the Bataclan concert hall in Paris on Friday, killing around 100 people, were themselves killed when police stormed the building, including three who activated explosives belts, several sources said.

Paris Public Prosecutor Francois Molins said the death toll was at least 120. His spokesman said eight assailants had also died, seven of whom had blown themselves up with explosive belts at various locations, while one had been shot dead by police.

Earlier, French President Francois Hollande said that gunmen who stormed a Paris concert hall killing several people and taking hostages have been killed, adding that France would be ruthless against those who carried out the attacks.

"The terrorists who were not far from here were killed," Mr Hollande said on television after visiting a security command centre near the Bataclan concert hall where the gunmen held people hostage before an assault by security forces.