Police in southeast Nebraska are trying to track down a convicted sex offender suspected of sexually assaulting more children.

Lincoln television station KLKN-TV reports that police are looking for 30-year-old Billy Barritt, who has been charged in a warrant with first-degree sexual assault of a child and three counts of third-degree sexual assault of a child.

Police say Barritt sexually assaulted multiple children under the age of 10 for more than a year. Authorities say that when Barritt learned of the investigation, he left his home in Fairbury.

Barritt is currently on probation for being a felon in possession of a firearm. Police believe he could be armed.

Anyone with information on Barritt is urged to contact the Fairbury Police Department or their local police.