One policemen was killed and another one was seriously wounded early on Saturday by a group of unidentified gunmen in western Moscow, a police spokesman said.
"Suspected criminals in a BMW sedan opened fire when police officers stopped their car and asked for identification," the spokesman said.
Moscow police has been put on high alert and the search for the suspects is underway.
Police cordoned off all exits from the Russian capital and reinforced police squads have been dispatched to the Kuntsevo district where the crime took place, the official said.
MOSCOW, March 13 (RIA Novosti)