A Washington state man was arrested over the weekend after he allegedly killed his dog by attaching a bomb to the animal and then detonated it.

Skamania County Undersheriff Dave Cox told KPTV that deputies responded to reports of an explosion at around 3:45 a.m. on Sunday morning and found remains of the dog scattered around the property.

Investigators determined that 45-year-old Christopher Dillingham had strapped an explosive device to the dog and then blew it up, killing the animal.

Cox told KATU that "death was instantaneous."

The Bureau of Alcohol Tobacco and Firearms and the metro area's bomb squad assisted in the investigation.

Dillingham was charged with second-degree malicious mischief, reckless endangerment and possession of an explosive device. Officials declined to give a motive for the crime, citing an ongoing investigation.

Dillingham was expected to appear in Skamania County Superior Court on Monday afternoon.

[Photo credit: Sad dog via Shutterstock.com]