Gunmen have killed the mayor of a small town in south-western Mexico, and at least 17 others, officials have confirmed.
Police say gunmen stormed the San Miguel Totolapan town hall at 14:00 (19:00 GMT) on Wednesday. Photos online show it riddled with bullet holes.
Mayor Conrado Mendoza Almeda’s party, the PRD, has condemned his “cowardly” assassination and demanded justice.
The attack has been blamed on the Los Tequileros criminal gang.
Police officers and council workers were also killed in the massacre, with graphic images of bloodied bodies lying on the ground circulating on social media.
Mr Mendoza Almeda’s father, former mayor Juan Mendoza Acosta, was also killed – in his home – before the attack moved to the city hall.