The statement was released on the same Telegram channel that was used to claim responsibility for the crash of a Russian jet over the Sinai Peninsula two weeks ago, killing 224 people. As in that case, it made the announcement in multiple languages and audio recordings.

President François Hollande of France said on Saturday that the Islamic State was responsible. Analysts said the nature of the attacks was more in keeping with actions of the Islamic State than with those of Al Qaeda, and the timing and extent of the celebration expressed online by the group’s supporters added weight to the claim.

“Eight brothers, wrapped in explosive belts and armed with machine rifles, targeted sites that were accurately chosen in the heart of the capital of France,” the group said in the statement, “including the Stade de France during the match between the Crusader German and French teams, where the fool of France, François Hollande, was present.”

“Let France and those who walk in its path know that they will remain on the top of the list of targets of the Islamic State,” the statement added, referring to the attacks at the Bataclan concert hall and elsewhere in Paris.

The style of the attack was in line with the Islamic State’s tactic of indiscriminate killings and goes against Al Qaeda’s guidelines. In a 2013 directive, the leader of Al Qaeda, Ayman al-Zawahri, stated that Qaeda operatives should avoid attacks that could inadvertently cause the death of Muslim civilians and noncombatant women or children.