Multiple people have been arrested following a violent riot outside an Immigration and Customs Enforcement (ICE) facility in Portland, Oregon, that involved knife-throwing and explosives.

A Department of Homeland Security spokesperson told Fox News Digital that one of the rioters had tried to fire a ‘Roman Candle’ firework at law enforcement.

The Department of Homeland Security shared a photo of the knife allegedly used in the Portland, Oregon, attack at an ICE facility. (DHS)

Fox News Digital previously reported that following a Portland “No Kings” protest on June 14, a mob had launched fireworks, smoke grenades and threw rocks at federal law enforcement.

The rioters broke glass and breached the ICE facility, leaving four officers injured.

Officials said the building was later secured.