DEER PARK, Wash. -

A bomb threat left in a bathroom stall forced the closure of Deer Park High School Wednesday morning.

At 9:45 a.m. a note was found in a girls bathroom stall that read, "Bomb goes off at 1 today." The note had a smiley face on it.

The assistant principal called in the threat and students and staff were evacuated from the building.

Students were initially evacuated from the school and were later dismissed for the remainder of the day.

Bomb sniffing dogs from Fairchild Air Force Base were called in to search the campus. Spokane County Sheriff's deputies, along with members of Fairchild's bomb display unit, swept the school parking lot first before moving on to clear the rest of the campus.