Tens of thousands of people have been forced to stay indoors after a huge, poisonous orange cloud appeared over the Spanish town Igualada.
The cloud was caused by an accident at a chemical factory when two chemicals were accidentally mixed causing an explosion.
Six people were injured from the blast but only one has had to stay in hospital.
More than 60,000 people living in nearby towns were told to stay indoors with the windows shut.
As the cloud later blew away, authorities later lifted the order to stay indoors.
Scientists believe the cloud is bright orange because of the type of chemicals that were mixed in the accident.
Article written by Charlotte Cull
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