PORTLAND, Ore. — Another night of nationwide protests against Donald Trump’s election came to a head in Portland, where thousands marched and some smashed store windows, lit firecrackers and sparked a dumpster blaze. Police termed the protest a riot and used “less lethal munitions” to help clear the streets.

Some 4,000 protesters surged into the downtown area late Thursday night with chants like “we reject the president-elect!”

Officers began physically pushing back against the crowd that at times threw objects at them as midnight approached, arresting several people and using flash-bang devices and types of smoke or tear gas to force people to disperse.

After several orders to leave, police said officers used “less lethal munitions,” such as pepper spray and rubber projectiles. Live video footage showed officers firing what appeared to be the non-lethal items. It wasn’t immediately clear if anyone was hit.

Protest number continued to dwindle through the night and as the early morning hours wore on, police announced to remaining clusters of protesters to immediately disperse or be “subject to arrest and the use of riot-control agents.” Police said they made 26 arrests.