CHICAGO (STMW) — A blaze at a strip mall in the West Side Lawndale neighborhood left one person critically injured Saturday evening, according to a spokesman for the Chicago Fire Department.

Firefighters believe some sort of explosion caused a fire to erupt in the 1800 block of South Kostner Avenue, Fire Media Affairs said about 6:20 p.m., adding that the cause of the fire remained under investigation.

The blaze caused a store front to collapse, Fire Media Affairs said.

A man believed to be 25-years-old was burned and listed in critical condition at Mount Sinai Hospital, Fire Media Affairs said.

Further details were not immediately available.

(Source: Sun-Times Media Wire © Chicago Sun-Times 2012. All Rights Reserved. This material may not be published, broadcast, rewritten, or redistributed.)