Officials put parents in Fairfax County on alert.
Administrators at Oakton High in Vienna are warning of a possible predator lurking near the school.
A letter went home to parents on Monday stating that two female students were approached by an unfamiliar man on Friday afternoon on Blake Lane.
According to the letter, the girls were not harmed in the incident, and the man walked away from the scene..
However, it follows a case early last week where police say a man tried to abduct a 16-year-old girl just a block away.
