Thousands told to stay indoors after chemical explosions in Spain

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2.   On May 14 2025, a significant chemical explosion occurred at a warehouse operated by Plainsur in the La Red industrial park of Alcalá de Guadaíra, approximately 16 km southeast of Seville, Spain.  The incidentignited a large fire and released a thick plume of dark smoke over the area.  Au

thorities advised around 80,000 residents to stay indoors, close windows, and wear masks to mitigate potential health risks.  

The warehouse stored highly flammable chemicals, including ethylene, toluene, and industrial solvents.  Emergency services responded promptly, evacuating nearby warehouses as a precaution.  By evening, the fire was being brought under control, but it was expected to be fully extinguished only by Thursday.  

This incident follows a similar event days earlier near Barcelona, where a fire at a chemical plant in Vilanova i la Geltrú released a toxic chlorine cloud, prompting confinement orders for over 160,000 residents.  

Authorities are investigating the causes of these incidents and have ruled out sabotage or cyberattacks in previous events.