PHOTOS: Walnut Creek explosion caused by illegal drug lab

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Sunday, November 2, 2014
One of two roommates critically burned after hash oil explosion destroyed an apartment.
Neighbors say this man was on fire after his apartment blew up. Police say he was allegedly cooking hash oil.
A mattress was blown out of an apartment after it exploded.
An explosion in Walnut Creek destroyed part of a townhouse structure.
An explosion in Walnut Creek destroyed part of a townhouse structure.
An explosion in Walnut Creek destroyed part of a townhouse structure.
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PHOTOS: Walnut Creek explosion caused by illegal drug lab One of two roommates critically burned after hash oil explosion destroyed an apartment.
Alan Wang

WALNUT CREEK, Calif. (KGO) -- Contra Costa County Fire Captain Kent Kirby says Friday morning's explosion in Walnut Creek has turned into a criminal investigation after police say this was not a gas explosion, but from a drug lab making hash oil - a concentrated form of pot.

Around 10 a.m., fire crews responded to a two-alarm explosion at a six-unit structure at 1564 Sunnyvale Avenue in Walnut Creek, close to the Pleasant Hill BART station.