The blast Saturday morning in the Rue de Trevise in the 9th arrondissement of north-central Paris also injured dozens of people. Authorities say 10 of them are still in critical condition.
Paris fire department spokesman Eric Moulin told reporters about 30 firefighters were at the site Sunday to search for other potential victims, amid a mountain of debris and wrecked cars.
Paris authorities said 12 neighboring buildings that were damaged by the blast apparently due to a gas leak have been evacuated. Temporary accommodations were provided for about 40 residents while dozens of others have been housed by family and friends.