A powerful explosion occurred on Monday, March 23, at a Valero-owned oil refinery in Port Arthur, Texas, United States. The blast was so intense that local authorities immediately instructed nearby residents to evacuate to safe locations, according to AFP. Emergency services in Port Arthur issued alerts urging people in surrounding areas to seek shelter away from the site.

Valero stated in a company release that all employees had been accounted for and no one was missing, emphasizing that worker safety remained their top priority. Local media footage showed large flames and thick black smoke rising from the refinery, while witnesses reported that the explosion shattered windows in nearby homes.

The refinery, located about 90 miles east of Houston, employs around 800 workers and processes approximately 435,000 barrels of oil per day, producing gasoline, diesel, and jet fuel. The cause of the explosion remains unknown, and an investigation is underway.