A massive explosion has ripped through a chemical factory in Massachusetts, with one worker still missing and four others hospitalised.
Firefighters rushed to Seqens, a pharmaceutical manufacturing company in Newburyport, at 12.45am local time.
The explosion was so big that an industrial-sized vat that had been inside the building was 30 feet away in a car park.
The chemical plant suffered large-scale damage as a result of the massive blast.
It means firefighters and technical rescue crews haven’t been able make it inside the building.
At the time of the explosion, there were five employees inside the chemical plant, according to the fire department.
Four of those people were taken to hospital before being released and later discharged.
But the fifth worker has yet to be found, with emergency crews desperately searching for them.
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