Mexican federal forces have arrested the leader of the notorious Zetas drug cartel, say officials.

Michael Weissenstein reports from Mexico City on the arrest of drugs cartel baron Morales

Senior Mexican drug cartel leader Heriberto Lazcano has apparently been killed in a fight with marines in the northern border state of Coahuila, the navy said.

Mexico says it has captured one of the country’s most-wanted drug traffickers, Ivan Velazquez Caballero, known as “El Taliban”.