Ammonia Leak Forces Evacuation in Oklahoma City

Thu Nov 13 2025 21:45:29 GMT+0200 (Eastern European Standard Time)

A chemical leak from a tanker truck in Weatherford, Oklahoma, has led to a major evacuation, with dozens hospitalized due to exposure to anhydrous ammonia.

A leakage of anhydrous ammonia from a tanker truck in Weatherford, Oklahoma, prompted the evacuation of several hundred residents and sent dozens to hospitals. Emergency responders, equipped with gas masks, went door-to-door to assist residents as the situation unfolded. The police chief confirmed that approximately 30 individuals were hospitalized, with some in critical condition. The leak was attributed to a mechanical failure, and authorities are continuing to monitor air quality as cleanup efforts commence.

A tanker truck leak in Weatherford, Oklahoma, has caused significant disruption, leading to the evacuation of hundreds of residents and hospitalization of several dozen people. The incident, which occurred late Wednesday night, involved a leak of anhydrous ammonia, a hazardous chemical commonly used as a farm fertilizer.

Emergency responders initiated a door-to-door evacuation process, urging residents to leave their homes while equipped with gas masks. By early Thursday, approximately 500 to 600 people sought refuge in local shelters, while others were advised to shelter in place for their safety.

According to Police Chief Angelo Orefice, about 30 individuals were treated at local hospitals; some have since been transferred for further care, with four reported to be in critical condition. First responders acted quickly, as those nearby experienced respiratory distress caused by the gas.

“It was a little crazy to wake up to,” recalled resident Krystal Blackwell, who was evacuated from her home. “I really thought it was a kind of dream.”

The driver of the tanker had parked behind a Holiday Inn, allegedly intending to stay the night when a mechanical failure—possibly a faulty valve or seal—resulted in the gas leak. Anhydrous ammonia is colorless, has a strong odor, and can prove deadly at high concentrations. It is also known to cause severe respiratory problems and skin burns.

In addition to the evacuations, several nursing homes were emptied as a precaution, and schools in the area were closed for the day. Cleanup efforts are expected to take several days, during which officials will monitor air quality closely. Authorities confirmed that the leak has been stopped and are working with environmental experts to manage the situation.

This incident follows a recent similar leak in Mississippi, which also required evacuations after an explosion at a plant released ammonia gas into the atmosphere. The risks associated with anhydrous ammonia have previously resulted in fatalities, underscoring the need for stringent safety protocols during handling.

As the situation in Weatherford develops, local gas distributor Airgas is collaborating with authorities to promote safe practices in managing hazardous materials. They encourage residents to heed directives from emergency personnel.