Police lobbed stun grenades and flares at crowds of rioters after anti-Trump protests in the US turned violent.
Video from riots in Portland, Oregon, shows police firing the explosives into the crowd in a bid to scatter demonstrators who gathered on Thursday night.
The footage shows flashes of light and clouds of smoke as police in riot gear clash with the mob in a second night of anti-Trump rallies.
Police said they used flashbangs on the crowd after demonstrators tried to block streets and bridges.
Officers with Portland Police called it an “unlawful protest” and reported objects were being thrown at them and vandalism on the streets.
Portland Police said: “After several orders to disperse, police have used less lethal munitions to effect arrests and move the crowd.”
They said 29 people were arrested during the riot.
Fresh rioting broke out for a second night on Thursday after Mr Trump’s shock election victory.
Activists hit the streets for another wave of protests with hundreds gathering outside the Republican’s buildings in New York and Chicago.
On the first night after the billionaire businessman’s win, thousands surrounded his penthouse home Trump Tower chanting “not my president”.
Oregon voted for Hillary Clinton in the US election.
