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

Anabel Hernandez’s book exposed Mexico’s bloody narco war, the corrupt state and its cartel bosses. David Kernek meets the mother who took on the drugs lords

Mexico is making progress in its fight against powerful drug cartels and they are becoming weaker as the crime bosses are killed or jailed, the interior minister said.

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”.