'One big mass grave': More than 250 human skulls found in Mexico

Protesters show photos of journalists killed over the years in Veracruz, Mexico.

Story highlights

  • Mass grave could be the largest in Mexico, state's attorney general says
  • Government sent federal police to help fight crime in Veracruz

(CNN)A mass grave containing more than 250 human skulls was uncovered in central Mexico, most likely the victims of drug cartels over the years, authorities said.

The mass grave found in Veracruz state could be the largest in Mexico, state attorney general Jorge Winckler told CNN affiliate Televisa.
Veracruz is "one big mass grave," Winckler told the affiliate Tuesday.