PEORIA, Ill. (AP) — A central Illinois sheriff says a search is underway for a Bradley University professor and her husband who are missing after a possible violent struggle in their home.

The Peoria County sheriff says deputies found blood inside the rural home of Susan Brill de Ramirez and Antonio Ramirez Barron after being called there Sunday night by a relative about a possible burglary.

Sheriff Brian Asbell said Monday that the couple, who are both 63, last reported to work on Thursday at the university in Peoria. Brill de Ramirez is an English professor, while Ramirez Barron works in the school’s information technology department.

Asbell says the couple’s vehicles were at the home and some items were missing from the house.