Police in Mexico are searching for the source of adulterated alcohol which has killed 46 people in the states of Morelos and Puebla.
People started falling ill on Sunday.
Some said they had bought and drunk alcohol to celebrate Mother's Day, others had attended a funeral where alcohol was passed around.
The authorities have warned people who may have drunk the adulterated alcohol and who have headaches or stomach aches to seek medical help.
Officials said 29 people had died in the central state of Morelos and another 17 in neighbouring Puebla state.
