KATU NewsBallot boxes in Washington State and Oregon were set alight by the same culprit damaging hundreds of votes, the FBI believes.Footage of the blaze in Vancouver, Washington shows smoke billowing from a red drop box as a uniformed officer scrapes at the smouldering remains of voter slips.

Police and firefighters crews responded to a fire inside a ballot drop box in the early hours of Monday in Vancouver, Washington. A fire suppressant device didn't activate and hundreds of ballots were lost. Authorities are checking nearby security cameras to try and find those responsible.