Smoke pours from Russian consulate chimney in San Francisco

Mysterious black smoke was seen rising from a chimney at the Russian consulate in San Francisco on Friday, as firefighters confirmed its occupants were burning unidentified objects on the eve of the mission's closure.Firefighters were called to the scene in response to alarmed -- or intrigued -- phone calls from citizens, but later clarified there was no cause for concern."The Russian embassy had a fire alarm NOT A FIRE everything is okay and we are clearing," San Francisco Fire tweeted from its