ACAPULCO, Mexico (AP) — Hundreds of students and teachers smashed windows and set fires inside a state capital building in southern Mexico on Monday, as fury erupted over the disappearance of 43 young people believed abducted by local police linked to a drug cartel.

The protesters called for the 43 students from a rural teachers’ college in Guerrero state, missing since Sept. 26, to be returned alive, even though fears have grown that 10 newly discovered mass graves could contain their bodies.