Police have found 60 bodies in an abandoned crematorium in the Mexican resort of Acapulco, officials say.
Local media report that neighbours became suspicious of the smell late on Thursday and called police.
The bodies of women, men and children were found "perfectly embalmed" and ready for cremation, officials said.
Police have opened an investigation into crimes including the desecration of bodies and violating burial and exhumation regulations.
The crematorium shut a year ago "due to bankruptcy or failure to pay debts to creditors", the prosecutor's office said on Friday.
"With the failure to cremate the cadavers, federal, state and municipal health laws were broken."
Officials said that they believed the bodies had been prepared for cremation and then left to decompose after the business closed.
Graphic photos of the crematorium show piles of bodies wrapped in dirty sheets on the floor of the building. Local media report that lime had been used over the bodies to try to disguise the smell.