Mexican federal forces on 4 July intercepted roughly 1,100 kilograms of methamphetamine at a highway checkpoint in La Paz, Baja California Sur. Soldiers, marines, National Guard officers and federal prosecutors found 575 cardboard boxes of the drug concealed beneath the wooden floor of a semi-trailer that had travelled by ferry from Mazatlán, Sinaloa. The vehicle, bearing California licence plates, was impounded and its 24-year-old driver was placed under arrest. On the same day, customs inspectors at the port of Ensenada, Baja California, used a sniffer dog to locate four suitcases filled with 200 kilograms of cocaine hidden inside a shipping container. Authorities put the haul’s street value at about 48 million pesos (US$2.5 million). Both seizures were executed by joint teams from the Secretariat of National Defense, the Navy, the National Guard, the Fiscalía General de la República and the Secretariat of Security and Citizen Protection under Operación Frontera Norte, a bilateral crackdown on cross-border trafficking. The Security Cabinet, led by Omar García Harfuch, reports that the four-month-old initiative has so far resulted in 4,619 arrests and the confiscation of more than 40 tonnes of narcotics.