Officials say two people have died in an industrial accident at the TECO Big Bend Power Plant in south Hillsborough County.

Hillsborough County Fire Rescue received a call about a possible explosion about 4:20 p.m. They said two people died at the plant, and four others were sent to hospitals with life-threatening injuries.

The accident happened during routine maintenance on a slag tank, TECO said. Slag is a byproduct of producing power from coal.

TECO officials said the accident happened in Unit 2 at the Big Bend plant. There are four units at the plant.

All other workers were accounted for, officials said.

Officials said there is no threat to the community.

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