Death toll in Washington landslide rises to 14, number of missing unknown

CTV National News: What triggered mudslide? Melanie Nagy reports from the scene, as crews make their way through debris searching for more bodies.

OSO, Wash. -- Authorities say they still don't know how many people remain missing from a deadly Washington state mudslide.

Snohomish County Emergency Management Director John Pennington said late Monday that officials were working off a potential list of 176 people, but he stressed that authorities believed that included many duplicate names.

At least 14 people have died. Officials say they are still culling through multiple reports of people who may have lived or worked in the area.

The slide smashed through a small community about 55 miles north of Seattle on Saturday morning.