ANDOVER, Kan. (AP) — Andover police are searching for vandals who damaged the football field at the Andover District Stadium before a rivalry game.

The vandals sprayed a large, blue “A” on the field sometime overnight last Friday. That is the Andover High logo and the incident occurred before Andover High and Andover Central played Friday night.

KWCH-TV reports the district spent $2,000 on a chemical treatment to remove the paint from the artificial turf. That didn’t completely remove the paint, so school officials are considering other options. Replacing the damaged part of the turf would cost about $40,000. The vandals could face felony charges because the damage exceeded $1,000.

Officers are currently following up on leads, including video surveillance from the field.