Police in Kitchener have laid a murder charge against a man in connection with an August home explosion that killed his 58-year-old wife.

The blast occurred on the morning of Aug. 22 at home on Sprucedale Crescent.

Edra Haan and her husband Udo Haan were found in the backyard of the property shortly after first responders arrived at the wreckage.

Edra Haan, also known as Edresilda Haan, died at the scene.

Udo Haan was airlifted to a Hamilton-area hospital with critical injuries. Waterloo regional police say he remains at the hospital where he is still receiving treatment.

The force of the blast completely leveled the home and caused significant damage to two neighbouring residences.

Residents of more than a dozen homes were forced to flee while crews surveyed the damage and some were unable to return for several days.

One day after the blast, with the results of a post-mortem examination taken into consideration, authorities ruled Edra Haan’s death a homicide.

On Tuesday, police announced charges in the case.

Udo Haan, 58, has been charged with one count of first-degree murder, one count of arson with disregard for human life and two counts of arson damage to property.

He appeared in court on Tuesday where his identity was made public.

The cause of the explosion is still unknown.