Authorities have asked people to help find whoever tried to start a fire at a University of Nebraska-Lincoln dorm.

Television station KOLN/KGIN says Smith Hall was evacuated around 4:50 a.m. Thursday after alarms sounded. UNL Police Assistant Chief Charlotte Evans says someone tried to set fire to a cork board in the third-floor lobby.

Evans says the smoldering board spewed heavy smoke, setting off the alarms. No injuries have been reported.

A Nebraska State Fire Marshal’s investigator has joined the arson investigation.