The Ellis County Sheriff's Office says the explosion Thursday morning involves a Chevron pipeline. It happened at a drill rig near Milford, about 40 miles south of Dallas. Messages left with Chevron were not immediately returned.
Flames could be seen shooting into the air and some vehicles at the worksite had been burned.
Lt. James Salter says authorities have not received any word of injuries.He said deputies were going door-to-door in Milford, advising people in the town of about 700 to leave.
Milford Independent School District Superintendent Don Clingenpeel says all students and staff were being evacuated to the nearby town of Italy.
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