New Delhi, Feb. 24 -- "El Mencho", also known as Nemesio Oseguera Cervantes, was the leader of the Jalisco New Generation Cartel. He was killed during raids by the Mexico military on Sunday. The massive drug raids led to widespread violence in some regions of Mexico.

Nearly three dozen criminals were killed in the operation and violence that flared across the country afterwards. Security Minster Omar Garcia Harfuch said. The National Guard lost 25 of its members, and one civilian was slain.

The Jalisco Cartel New Generation (CJNG) is a transnational criminal group formed in 2009. Oseguera, 59, was a founding member of CJNG.

It has approximately 15,000 to 20,000 members and operates mainly "throughout Mexico, with strongholds in Jalisco...