Thermite, a commonly used component in welding, was used in a string of ballot box arsons before the November election ...

The FBI has announced new information and requested additional information in connection to the arson of three ballot boxes ...

The fire burned hundreds of ballots in Vancouver, Wash., as well as some in Portland in the days and weeks before the ...

The FBI said Thursday the suspect in the Oregon and Washington ballot box fires in October used a welding material that can burn at 4,000 degrees.

The FBI believes the suspect used a substance known as thermite, made from metal shavings ... anxiety related to the election or a new interest in welding. W. Mike Herrington, special agent ...

He described thermite as a mixture of metal shavings and iron oxide, or rust, commonly used by welders. He said the mixture can be dangerous if not handled safely. The suspect welded scrap metal ...

Specifically, law enforcement is looking for someone who is unusually knowledgeable about explosives or incendiary devices, particularly thermite, and/or has an interest in grinding or welding metal.

He described thermite as a mixture of metal shavings ... a person showing a new interest in welding or collecting metal scraps, such as nuts and bolts. — a person showing an unusual interest ...

“We’re very worried this person may harm himself or others if he continues to experiment with thermite,” said W. Mike Herrington, the FBI special agent in charge in the Seattle office.