The factory explosion that killed two workers in Louisville, Kentucky, last week was caused by a failed cooking vessel, officials said Monday.

On Sunday, Louisville ATF and Metro Arson Bureau officials wrapped up the first phase of their investigation into the Payne Street factory blast.

A cause has been revealed for the Louisville factory explosion that left two dead and 11 injured last week. The explosion, that took place at the Givaudan Sense Colour plant, a Swiss-owned manufacturer,

Keven Dawson Jr.’s family described him as a loving father and veteran who went to work at Givaudan Sense Colour just before his 50th birthday — but never returned.

A faulty cooking vessel at the Givaudan Sense Colour plant in Clifton was responsible for a deadly explosion that killed two and injured 11 workers last week. That’s according to investigators who briefed media on the status of the investigation Monday.

ATF Louisville presented some of its initial findings from their investigation into last week's deadly plant explosion, including the cause.