MEXICO CITY (Reuters) - Mexican authorities have discovered 337 bodies in clandestine graves since Dec. 1, when President Andres Manuel Lopez Obrador took office, a top Mexican official said on Tuesday.

Lopez Obrador has pledged to reduce the violence plaguing Mexico, but so far the murder tally this year is on track to surpass the record total of 2018.

Deputy interior minister Alejandro Encinas told a regular morning news conference alongside Lopez Obrador that 337 bodies had been found in 222 graves mainly in the states of Veracruz, Sonora, Sinaloa, Guerrero, and Colima.

The states have been among the hardest hit by killings and disappearances at the hands of organized crime in recent years.

Encinas, who has the human rights portfolio within the interior ministry, said it was the new government’s first official count of corpses in clandestine graves.

The list Encinas provided did not seem to include 38 bodies that officials have so far found in recent and ongoing digging around the metropolitan area of Mexico’s second-biggest city, Guadalajara.

More than 200,000 people have been killed and tens of thousands disappeared since Mexico’s government sent in the armed forces at the end of 2006 to crack down on drug cartels.