Mexican authorities are continuing their work to identify 59 bodies found in eight mass graves in San Fernando, Tamaulipas.
The bodies of the victims have been taken to the Tamaulipas Attorney General's Office Forensic Medical Service Center (SEMEFO) in Matamoros.
Video show that the bodies arrived at the SEMEFO in an 18-wheeler trailer on Wednesday evening.
Authorities are working to see the if the bodies are those of immigrants who were kidnapped while riding aboard passenger buses headed to the United States.
This is the second massacre reported in San Fernando in the past year.
The bodies of 72 Central and South American immigrants were found in a ranch outside San Fernando back in August.