A senior official at the Russian Embassy in Libya confirmed the return of the Russian ambassador Ivan Mulotkov to his office in Tripoli.A senior adviser at the Russian embassy in Libya, Leonid Frolov said in a statement published by the Russia News Agency ( RIA Novosti ) today that the Ambassador Ivan Mulotkov returned to Tripoli in the first of February.Russia has evacuated its embassy from Libya at the beginning of last October, after its embassy attacked by protesters on the Libyan officer killed by a Russian citizen.