Deadly crash investigation on SR 204 in Lake Stevens

Lake Stevens police are investigating a deadly multi-vehicle crash Friday morning. 

The crash happened on State Route 204 near Sunnyside Boulevard. 

The Washington State Department of Transportation said the crash is blocking all lanes, as of 6:45 a.m.

It's unknown how many cars were involved or what led up to the crash.

This is a developing story, and will be updated.