Police in Mexico has arrested three men in connection to a bloody gun attack on a drug rehabilitation centre which left 27 people dead.
Authorities said gunmen burst into the centre in the city of Irapuato in the central Guanajuato state on Wednesday, forcing victims to the ground and shooting them.
The original death toll was 24, but three of those who were injured have since died.
The prosecutor’s office described the incident, which is the deadliest of its kind this year in the country, as a “heinous crime.”
President Andres Manuel Lopez Obrador has also condemned the attack. He called on the Guanajuato government to investigate whether the violence could be partly due to “conspiracy” between local authorities and criminal gangs.
Local media reports that the attack was part of an ongoing battle between rival cartels.
Wednesday’s attack was the second-most lethal assault since Lopez Obrador came to power in December 2018, after 28 people were killed at a bar in the eastern state of Veracruz last August.
According to official figures, over 290,000 people have been murdered since December 2006 when the then-government launched a military operation against drug trafficking gangs.