Update (4:15 a.m.):
All lanes are now re-opened. Police say the person who was threatening self harm is now safely in custody.
Originial story (2:42 a.m.):
Intersections of Seward Hwy and Tudor currently closed in all directions.
A.P.D. is urging you to use a different route, they have the area blocked off for a public safety event with subject threatening self harm. No weapons mentioned.
This is a developing story and we will update when details become available.