Emergency workers were on the scene Tuesday of an early morning explosion at a BASF chemical plant in Cornwall, Ontario, just across the border from Massena.
Police and firefighters responded to the site of the plant just after 6 a.m. and police confirm there are no immediate injuries.
Cornwall police Constable Dan Cloutier says the scale of the explosion was "relatively small," and workers in the plant were reported to have escaped the building unharmed.
Witnesses say roads in the area are being blocked off by police.
BASF, a global chemical corporation, has roughly 30 employees at its Cornwall plant, which manufactures monomeric and polymeric plasticizers.
According to the company's website, the plant operates 24 hours a day.
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