A group calling themselves the Matazetas, or "Zetas killers" in English, has emerged in the Mexican city of Veracruz.
The group has vowed to protect Mexicans from the notorious Zetas drug gang and claim they were involved in the killing of 49 people last week who they claim were associated with the Zetas.
Mexican authorities, however, describe the Matazetas as just another criminal gang.
Al Jazeera's Adam Raney reports from Veracruz.
Source: Al Jazeera