Group of approximately a dozen people setting fire and causing damage to a portable trailer and construction site at 12/Jefferson. Possible explosions heard on site. Large group in the area. Working to secure access for @SeattleFire

Protesters also broke out windows on personal vehicles and a King County court facility.

Police receiving reports of groups breaking out windows at businesses on 12th Avenue. Now headed north approaching Madison Street.

Officers calling Seattle Fire to 800 block of 12th Ave to investigate possible smoke inside a business.

Reports of demonstrators breaking windows at additional businesses in the 900 block of 12th. Also a fight reportedly in progress at the scene.

Individuals spray painting on East Precinct at 12th and Pine and attempting to disable cameras and damage fence perimeter around building.

Due to the ongoing damage and public safety risks associated with this incident, SPD is declaring it a riot.

At least one person breached the East Precinct fence line shortly before East Precinct officers noticed smoke in the building lobby.

Police have issued dispersal orders and deployed less-lethal munitions to clear the area. Crowd is now moving west on Pine Street.

Officers investigating a possible explosive damage to walls of the East Precinct. Also reportedly some sort of explosives being thrown or fired at officers.