Unidentified people opened fire at a detail of the police patrol service in Makhachkala on Tuesday killing two police officers. "The incident occurred in the Kirovsky district of Makhachkala at 01.30 Moscow time," Itar-Tass learnt at the press service of the Interior Ministry for Dagestan. According to the press service, "Unidentified people were riding in a Zhiguli car which the policemen tried to stop for checking documents. In return, the criminals opened fire at them killing one policeman on the spot, and another died in hospital from numerous bullet wounds." A search for the criminals is underway.