Around 160,000 people in Spain's northeastern Catalonia region were warned to stay inside on Saturday after a fire at an industrial estate caused a toxic cloud of chlorine over a wide area, emergency services said.
The blaze at a swimming pool cleaning products company started at 2.20 a.m. (0020 GMT) in Vilanova i la Geltru, a town 48 kilometers (30 miles) south of Barcelona and caused a huge plume of chlorine smoke over the area.
"If you are in the zone that is affected do not leave your home or your place of work," the Civil Protection service said on social media site X.