Soldiers have found 25 more corpses as they search mass graves in the northern Mexican city of Durango – bringing to at least 146 the number found there in the past month.
The latest remains were of two women and 23 men – like the others, believed to be victims of drug gangs.
Nine previously recovered bodies included four people who had been strangled and one suffocated, the state prosecutor's office said.
The causes of death for the others had not yet been determined.
Durango, capital of Durango state, is the scene of a bloody turf war between remnants of the Beltran Leyva cartel, Sinaloa cartel and Zetas gang.
Mass graves have become an increasingly common discovery in Mexico, with narcotics criminals using them to dispose of enemies and other victims amid a rise in gang feuding.