At least 35 people have been killed in multiple attacks in Paris, including one near a stadium where a soccer match was underway and another at a concert hall where a hostage situation is ongoing, French police said.

Fifteen of the victims have been killed at the Bataclan concert hall in eastern Paris, where a hostage crisis is on going.

Police said at least 100 hostages were believed to have been taken at the theatre.

Three others were reportedly killed in two explosions, which were heard close to Stade de France Stadium where France and Germany were playing a football match.

French president François Hollande was at the stadium and had been taken out of the area, France 24 television said.