The Chevrolet in which the six people were traveling was headed west when it went off Pioneer Highway near Norman Road, south of Stanwood, sheriff's Lt. Jeff Brand said.
One person was pronounced dead, with the others taken to hospitals by helicopter and ground ambulance, Brand said.
Their identities were not immediately available.
The roads near the intersection are closed while crash detectives investigate.
More Local News Headlines
Objection delays release of records in school shootings Victims’ families want full account of shootings, lawyer says ‘Unprecedented’ wind storm: 23K in county still without power Cost overruns, location, parking needs put courthouse on hold Clarence Robertson volunteered for 56 years as a reserve deputy Evergreen State Fair Judging results 5-story building in Mill Creek would include affordable housing Island County undersheriff resigning to care for his children
Our new comment system is not supported in IE 7. Please upgrade your browser here.