New York City police seized 580 pounds of cocaine valued at an estimated $10 million from a Queens self-storage facility on Friday, calling it the largest single cocaine seizure in the city in two decades. Nelson Salcedo, 35, of New Jersey, was arrested while moving several boxes that hid the cocaine, and two suspected accomplices were taken into custody in connection with the shipment.

NYPD Commissioner Jessica Tisch, speaking to the New York Post, said the shipment was tied to a broader trafficking operation that extended well beyond the five boroughs. “This was a massive shipment of narcotics, tied to an interstate trafficking network with connections across the country, including in New York and New Jersey,” Tisch said. “And because of the work of the investigators standing with me today, those drugs will never make it into the streets of New York City.”

Special Narcotics Prosecutor Bridget Brennan said the cocaine cache her office had taken in this week was unlike anything seen in her tenure. “This appears to be the largest single cache of cocaine my office has seized in 20 years,” Brennan told the New York Daily News. “Thanks to our investigators and our law enforcement partners in this case, these drugs will never make it onto the streets of New York City.”

The seizure was carried out jointly by NYPD detectives and Drug Enforcement Administration agents. Salcedo was arraigned Friday on charges of criminal possession of a controlled substance, according to police.

Investigators began following Salcedo on Aug. 12, when officers observed him dropping off packages believed to contain drugs near the north end of Central Park, according to the NYPD. On Wednesday, officers spotted Salcedo loading boxes into a van registered to an elevator repair company, police said.

Police and DEA agents recovered 230 bricks containing 580 pounds of cocaine from the boxes.