A White Plains middle school was evacuated after an administrator saw the word "BOMB" scrawled in pencil on a stairwell wall.
Greenburgh police were called to Ardsley Middle School at about 12:30 on Wednesday afternoon.
School administrators decided to evacuate the school in order for the police to conduct a sweep of the school using a K9 to detect any possible suspicious items.
All of the students were safely evacuated and Westchester police responded with bomb squad resources and a K9. The Yonkers Police Department also provided police dogs.
The school was deemed safe after the search.