There is a developing situation near Cle Elum. The Yakima Herald reports that traffic on I-90 is closed in both directions between Ellensburg and eastbound exit 84 after a tanker truck and a car collided this morning just east of the town. One person has died.

The truck was carrying four tanks of anhydrous ammonia, a toxic gas used in fertilizer. According to a tweet from State Trooper Brian Moore, one of the tanks is leaking The immediate area around the crash site has been evacuated and the Kittias County Sheriff's office is asking people up to a mile downwind of the crash site to close windows and turn off their air conditioning.

WSDOT estimates that I-90 will reopen by 5pm.