FORT WORTH, Texas — The Latest on a train derailment in Texas (all times local):

1 p.m.

Three horses are dead after a derailed freight train burst into flames in Texas and the fire spread to their barn.

The Union Pacific train carrying highly flammable ethanol derailed in Fort Worth early Wednesday.

Fort Worth firefighter Kyle Clay says several other horses were saved from the burning barn.

Residents were evacuated from about 20 nearby homes as a precaution. No one has been reported injured.

At least one of the cars is still burning hours later.

It's not clear what caused the derailment, which occurred as heavy thunderstorms were moving through the area.

The National Transportation Safety Board is investigating.

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10 a.m.

No one was hurt when a Union Pacific train carrying ethanol derailed in a residential area in Fort Worth and caught fire.

Union Pacific spokeswoman Kristen South says the train derailed at about 12:30 a.m. Wednesday near Echo Lake in Fort Worth. South says the fire was mostly contained by 8 a.m. and that crews will spend the day cleaning up the site.

The National Transportation Safety Board, which is investigating, says 20 rail cars derailed and five tank cars caught fire.

Authorities say the fire prompted the evacuation of about 20 nearby homes as a precaution, and a hazardous material team is on site to monitor the air quality.

The cause of the derailment is not yet known, though it occurred when heavy thunderstorms were moving through the area.