Lawrence police Monday investigated graffiti containing a threat against unspecified individuals discovered on a rest-room wall at Southwest Junior High School.
"It was threatening in nature," said Principal Trish Bransky, who declined to elaborate.
Bransky had police called to the 650-student school after a student reported finding the message during the lunch period in a seventh-grade girls' bathroom. The investigation isn't finished, she said.
A letter addressed to Southwest parents and distributed to students at the end of the school day didn't contain the specific threatening statement, targets of the message or the promised date of the violent act.