Three people were lightly injured in a factory explosion in the industrial area of Negev town Ramat Hovav on Monday.
The three Machteshim factory workers suffered from gas inhalation and were taken to Beersheba's Soroka hospital for treatment.
Police were ordered to evacuate the surrounding factories, and workers were instructed to don protective suits and masks, as a yellow cloud of phosphorous began to spread over the area.
Route 40 was closed off near the town, as well.
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