UPDATE as of 7:56 p.m. Northbound traffic is getting through on the shoulder and southbound traffic is getting past the accident in one open lane and the shoulder, according the Washington State Patrol. No one was injured and no other vehicles were involved.
INITIAL POST: A jackknifed semi is blocking all lanes of northbound I-5 at South Yakima Avenue, according to the Washington State Patrol.
Some southbound lanes are blocked from debris.
The semi was heading north on I-5. It struck the barrier after it jackknifed, which pushed the barrier and debris into the southbound lanes, according to trooper Guy Gill.
This is a developing story, check back for updates.