New York Mayor Bill de Blasio sued the U.S. Postal Service in Brooklyn federal court Tuesday for allegedly ”turning a blind eye” to the illegal shipment of hundreds of thousands of cartons of cigarettes through international mail.

In a joint lawsuit filed with California Attorney General Xavier Becerra, de Blasio accused the USPS and Postmaster General Megan Brennan of violating a 2010 law regulating interstate cigarette deliveries and cracking down on illegal trafficking.