Three police officers were injured and 18 people were arrested as a result of a riot in Seattle over the weekend that involved explosives, bottles and rocks, authorities said.
A protest against the Seattle Police Officers Guild erupted into violence Sunday night, police said in a news release.
Police said the march began in the International District around 7.00pm with about 100 demonstrators accompanied by vehicles following behind.
Police said the group moved toward the Seattle Police Officer Guild building and shortly after 10pm, someone in the crowd set off a large explosive and attempted to break out a police vehicle window.
The demonstration was then declared a riot and police began dispersing the crowd.
But as they tried to break up the group, individuals in the crowd began throwing rocks and bottles at officers. Multiple explosives were thrown toward the officers.
Several officers were struck by explosives and injured, prompting them to call additional police to respond to the scene.
The Seattle Fire Department responded to treat the injured officers.
Blast balls and ‘OC spray’ – also known as pepper spray – were used to disperse the crowd, police said.
All 18 people who were arrested were booked into the King County Jail.
Authorities said at least three officers were injured. One of the injured officers was hospitalized.
The department released photos of some of the injuries including one officer with a black eye and another with a burn mark on their neck.
This remains an active investigation, police said, adding that they will release more information at a later date.