佛罗里达州一座天然气厂发生爆炸 天然气, 发生爆炸, 佛罗里达州

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At least seven people were injured by a series of explosions at a gas plant in the US state of Florida, officials say.

美国佛罗里达州一座天然气加工厂发生连环爆炸，至少7人受伤。

They were working at the Blue Rhino
propane（丙烷）
plant, in the town of Tavares, when the blasts began at about 23:00, blowing the roof off.

The explosions continued for about an hour and caused a large fire. The cause of the initial blast is not yet known.

Fifteen workers were found safe after initially being unaccounted for, while two others managed to escape unhurt.

A spokesman for the Lake County Sheriff's Office, John Harrell, said the missing workers had merely "scattered" when the explosions began and had since been contacted by their managers and emergency crews.

People living within 0.5 miles (0.8km) of the plant have been evacuated, although Mr Harrell said emergency crews believed the fire had been contained and that there was no immediate danger to them.

Officials are investigating the blasts. There were an estimated 53,000 tanks at the plant at the time.

Former plant supervisor Don Ingram told WESH-TV that Blue Rhino took in propane tanks used for home barbecues, cleaned them, checked their valves and then refilled them.

About 4,000 to 5,000 tanks were refilled each night and were stacked on
plastic pallets（塑料托盘）
four or five high behind the filling station, Mr Ingram added.


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