DALLAS - A 6-pound chunk of metal that smashed through the roof of a Dallas home came from a nearby wood chipper, police say.

Dallas police spokesman, Senior Cpl. Kevin Janse, said the metal chunk was a "grinding bit" from a wood chipper but didn't elaborate on how the debris was launched from the tree service machine, the Fort Worth (Texas) Star-Telegram said Friday.

"It has been confirmed that the object that struck the house was in fact a grinding bit off of a tree grinder from a nearby tree service," Janse said Thursday.

The chunk of metal was found inside the Dallas home on Tuesday, prompting a call to police. No one was hurt in the incident.

While authorities investigated the metal chunk following its discovery, its origins initially remained a mystery until it was traced to the tree service.

Janse wouldn't identify the name of the service, saying it was unclear if the workers operating the chipper knew the chunk was thrown from the device, the Star-Telegram reported.

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