UPDATE as of 9 p.m. All lanes are cleared, according to the state. Trooper Guy Gill said it appeared someone was trying to jump from the Pacific Avenue Bridge earlier, but that the suspect is now safe and in custody.
INITIAL POST: Police are blocking both directions of state Route 509 near Interstate 705, according to the state Department of Transportation.
The incident started about 8 p.m.
The State Patrol and Tacoma police are at the scene.
Further details are not immediately available. Check back for updates.