UPDATE: All lanes are now clear.
A crash on westbound I-84 in Caldwell is causing severe traffic issues through Nampa.
Traffic is blocked between the Caldwell exit to the Karcher exit because of the crash. There are now multiple crashes in Nampa as a result of that crash.
Traffic is backed up all the way to the Garrity exit.
The circumstances and the severity of the crashes are unknown at this time.