MONT BELVIEU, Texas — Mont Belvieu firefighters responded to a plant explosion and fire late Monday morning.

The blast happened around 11 a.m. at the ONEOK MBC Maintenance plant on SH 146 near SH 99 in Chambers County, northeast of Houston.

Three workers suffered non-life-threatening injuries, according to a city spokesman. All other workers have been accounted for, according to the City of Mont Belvieu.

Firefighters brought the fire under control, but video from AIR 11 shows extensive damage.

The fire department said the blast could be heard around Mont Belvieu.

The city says there is no immediate threat to the public.

All roads in the area remained open.

According to its website , ONEOK has 60,000 miles of pipelines that "transport the natural gas, natural gas liquids (NGLs)

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