A 56-year-old man was mauled to death on Monday by a lion and a tiger kept on the roof of a small Mexico City meat packing plant, local media reported.
Antonio Aguilar, the animals' caretaker, was near the big cats when the lion swatted at his legs and the tiger helped pull him into their cage, witnesses said.
City officials said they would issue a news release about the attack later on Monday and refused to confirm details.
Red Cross paramedic Alberto Xochigua told the local newspaper 'Reforma' that Aguilar was still alive when paramedics arrived at the plant in the Iztapalapa neighbourhood. He said Aguilar bled to death after suffering arm and leg injuries.
Mexico City animal experts shot the felines with a tranquiliser gun to recover the body, Radio Formula reported.
Authorities were questioning the cats' owner to determine whether he had permission to keep exotic animals.