At least five people died in a fire at a fairground in the southeastern Mexican city of Villahermosa on Thursday, after the massive blaze broke out during a concert attended by thousands.
Authorities do not know what caused the fire, which erupted early on Thursday morning and is now under control, Civil Protection officials said.
Media outlets and social media users reported dozens of people fleeing the scene as a column of black smoke enveloped the sky.
Tabasco state Governor Javier May expressed his condolences to the families of the victims, who he said included fair exhibitors unable to leave the premises in time.
May added in a message on X that investigations have begun to determine the fire's cause and announced an economic recovery programme for affected merchants and businesses.

Explosions heard in Damascus during Macron visit, security source says
Trump says there will either be a deal with Iran or US will 'finish the job'
Storms kill at least eight in central China as Typhoon Bavi looms offshore
Landslide in China's Gansu province traps 16
Hamas dissolves Gaza government, Israel dismisses move as 'stunt'
Death toll from Venezuela quakes rises to 3,535 as thousands remain displaced
Russian strikes kill 26, exposing Ukraine air-defence shortages
Clashes escalate at Sri Lanka prison to leave 25 dead, many more injured
