$16 million worth of cocaine hidden in a tractor-trailer truck

Drug agents in the Bronx have arrested four men and seized $16 million worth of cocaine hidden in a tractor-trailer truck, authorities said Monday.The 400 pounds of cocaine was hidden in a hollow steel band around the cargo floor of the 16-wheeler, Special Narcotics Prosecutor Bridget Brennan said.The packages were heavily wrapped in duct tape -- an apparent attempt to avoid detection by drug sniffing dogs, Brennan said. Agents spent 10 hours searching the truck before an X-ray device disclosed the hiding place.Brennan said the truck has California license plates and may have been used by international drug smugglers for other cross-country trips. She said it's believed other such trucks are on the road.The suspects were charged with first-degree criminal possession of a controlled substance and second-degree conspiracy. If convicted, they face 8 to 20 years in prison.