Investigators have found a stash of weapons at the home of a man killed while ramming a car loaded with guns and a gas canister into a police van on Paris's Champs-Elysees, a source close to the probe said Tuesday.

Adam Dzaziri, a 31-year-old who had been on a watchlist for radical Islamists, had at least nine weapons, including two pistols and a Kalashnikov-type assault rifle, the source said.