One gunman was killed in a special operation in the Buinaksk district of Russia's North Caucasian republic of Dagestan, a spokesman for the republican administration of the Russian Investigations Committee told Itar-Tass on Tuesday. According to the spokesman, police killed the man near the settlement of Chanurbe in the small hours on Tuesday, when he offered armed resistance. The man is being identified. So far there are no further details of the operation.