Multiple catalytic converters were stolen from cars early Saturday morning in Lots X and O, according to an NIU police safety bulletin.

Police are encouraging people to report suspicious persons under vehicles who may be trying to steal a catalytic converter. Reports should include a description of the suspect and license plate number of the suspicious vehicle, according to the safety bulletin.

These cases are under investigation. Anyone with information on the reports can contact NIU police at 815-753-1212, DeKalb police at 815-748-8400 or the DeKalb County Crime Stoppers at 815-895-3272 or [email protected].