Laughing gas probe after three teens die in French pool car crash

Three teens drowned Wednesday in France after the car they were in veered of the road into a private swimming pool, a prosecutor said, in a case possibly linked to laughing gas.

A police source told that several bottles of nitrous oxide, or "laughing gas", were found in the car. It is still legal in France for individuals to buy the gas, though lawmakers are trying to push a draft law through parliament to ban its recreational use.

Several towns in France have tried to ban its public consumption and restrict its sale, warning of an increased risk of road accidents. A driver who had consumed the gas killed a 19-year-old in the northern town of Lille last month.