MOSCOW, October 31. /TASS/. Drug policemen seized over 410 kilograms of heroin in the Moscow region, head of the Russian drug control authority Viktor Ivanov told reporters on Friday.

The operation, which lasted for two years, resulted in detention of six members of a criminal group, including the leader, he said.

“At night of October 30, the drug police seized 174 kilograms of heroin,” Ivanov said.

“Earlier, as the work on the criminal group continued, the policemen seized more than 250 kilograms of heroin.