No indication leads us to believe it was an attack,

Two carriages were hit by a fire which gave off a large plume of smoke. We have about 15 light injuries, mainly people who inhaled the smoke.

[PARIS (Reuters) – A fire in the Paris Metro on Saturday caused light injuries to about 15 people, most of whom suffered from smoke inhalation, a fire official said.] Two carriages were hit by a...

It was like a pottery oven in there.