An ISIS-linked media group threatened new attacks in France Monday just days after three jihadists killed seven people in London.

Nashir News Service, which posts content on the messaging app Telegram, released a statement in which it warned of further "horror" unless the French government ceased its campaign against the Islamic State.

According to a screenshot of the message, posted to Twitter by terrorism analyst Michael S. Smith II, the announcement originates specifically from "the soldiers of the Commander of the Faithful in France."