Posted Thursday, May 31, 2012 --- 7:00 a.m.

GLENDALE, Wis. (AP) -- The elderly man seriously injured when his house exploded in a Milwaukee suburb has died.

The Milwaukee County Medical Examiner's Office says 88-year-old Marvin Engler died Wednesday night. He and a female caretaker were injured when the house exploded and caught fire Saturday in Glendale.

The state fire marshal as well as agents from the Bureau of Alcohol, Tobacco and Firearms inspected the rubble. Authorities say they've been unable to determine a cause of the explosion. But the North Shore Fire Department says there is no indication that it was intentional or criminal.

WITI-TV (http://bit.ly/KPkHY1 ) says the explosion also damaged neighboring homes.

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Information from: WITI-TV, http://www.fox6now.com

Copyright 2012. The Associated Press.