Bridgeport explosion sparked by open valve on truck hauling 4,000 gallons of oxidizer, official says

The driver of a truck delivering 4,000 gallons of "low-grade oxidizer" opened a valve, likely sparking several explosions at Tradebe Environmental Services, Bridgeport official says.

from News https://www.ctpost.com/news/article/bridgeport-explosion-fire-cause-tradebe-cross-st-18581175.php