The governor of Mexico’s southern Guerrero state - where 43 students went missing after clashing with police last month - has said he is standing down.
According to the BBC, Angel Aguirre said he hoped the move would create “a more favorable political climate to bring about the solution to the crisis”.
He has faced growing criticism since the disappearance of the students in the town of Iguala on 26 September.
Eyewitnesses described seeing them being bundled into police cars.
Six people were killed during the clashes.
Mexico’s Attorney General Jesus Murillo Karam on Thursday said there appeared to be deep ties across the southern state between politicians, the police and drug gangs.
He said arrest warrants had been issued for Iguala Mayor Jose Luis Abarca, his wife, and the town’s police chief. They are suspected of ordering the police to hand over the students to local gangsters.
All three suspects have gone missing.
