MEXICO CITY: Mexico stroke a major blow against one faction of the hyper-violent Zetas cartel, with the navy announcing it has captured one of the country’s most-wanted drug traffickers, Ivan Velazquez Caballero, known as “El Taliban.”

Velazquez Caballero has been fighting a bloody internal battle with top Zetas’ leader Miguel Angel Trevino Morales, and officials have said the split was behind a recent surge in massacres and shootouts, particularly in northern Mexico.

“A person who is presumed to be, and acknowledges being, Ivan Velazquez Caballero, was captured in the state of San Luis Potosi” in north-central Mexico, the navy said in a statement on Wednesday.

Officials presented Velazquez Caballero to the media yesterday.

Also known as “Z-50,” Velazquez Caballero has a 30 million peso ($2.3 million) reward on his head.

If confirmed, Velazquez Caballero’s arrest could calm some of the brutal violence that has hit border cities like Nuevo Laredo, across from Laredo, Texas, in recent weeks.

On Sept. 14, eight men were found shot to death and one hanging from a bridge in Nuevo Laredo, territory traditionally controlled by Trevino Morales, alias “Z-40.” Analysts say 14 bullet-ridden bodies stuffed in a van in mid-August in San Luis Potosi were men loyal to “El Taliban,” and may have been left there as a warning by Trevino Morales’ underlings.

Discussing recent fighting, a US official in Mexico who could not be named for security reason said earlier this week that “I think right now the uptick that I’m seeing is between ‘40’ and ‘50’,” referring to Trevino Morales and Velazquez Caballero by their “Z’’ aliases.

The Zetas cartel takes its name from a police radio code in which “Z’’ means “commander,” and a number refers to rank.

The official said Velazquez Caballero appeared to have formed an alliance of convenience with the Knights Templar cartel based in southern Michoacan state for his fight with Trevino Morales.

Banners signed by various elements of the Zetas and hung from overpasses in several Mexican states appeared to confirm mutual hatred between Trevino Morales and Velazquez Caballero. In the obscenity-laden banners, the two capos accused each other of betraying their fellow traffickers and preying on civilians.

If the man arrested as “El Taliban” is confirmed, the development could strengthen Trevino Morales, who shares leadership of the Zetas with Heriberto Lazcano, alias “El Lazca.”

The US official played down recent speculation that Trevino Morales and Lazcano had also fallen out.

“I’m not familiar with a fight between him (Trevino Morales) and Lazca,” the official said. “I think he and Lazca — Lazca is doing his thing and he is doing his, and they’re still together from what I understand.”