A deadly crash involving six vehicles, including a semi, blocked all southbound lanes of I-5 in Everett early Monday morning.
The crash occurred just before 12 a.m. north of US 2.
One person was killed and three injured, according to WSP spokesperson Trooper Heather Axtman. The three injured were transported to a local hospital with minor injuries.
WSP rerouted southbound traffic onto SR 529. All vehicles stuck behind the crash were turned around until the scene cleared around 5 a.m.