The suspect used an “improvised incendiary device” to start the fire in Portland, Oregon, ahead of the US election.

A suspect in the ballot drop box fires that occurred in Vancouver, Washington, and Portland, Oregon, before Election Day is still unknown.

The FBI is offering a $25,000 reward for information on a suspect behind ballot box arsons in the Pacific Northwest ahead of the Nov. 5 election.

The FBI is offering up to $25,000 in exchange for information about the suspect they believe set fire to several ballot boxes in the Pacific Northwest during early voting last month.

The FBI announced its offering a reward of up to $25,000 for information leading to the arrest of the suspect responsible for West Coast ballot box fires.

The FBI is offering a reward of up to $25,000 for information leading to the arrest of a suspect in a trio of suspected arsons at Pacific Northwest ballot boxes last month.

Newly released surveillance video shows a ballot box being set on fire in Portland, Oregon, last month. The video shows the suspect lighting what appears to be a fuse, then placing it inside the ballot box.