MOSCOW, December 25 - RAPSI. Investigators have not found any proof regarding the assertion that self-exiled oligarch Boris Berezovsky was involved in a series of high-profile assassinations, Vladimir Markin, the Investigative Committee's official spokesperson, said on Monday.

"An investigation is underway into Boris Berezovsky's possible involvement in the assassinations of Vladislav Listyev, Anna Politkovskaya and State Duma lawmaker Vladimir Golovlev. However, so far there has not been any information found which confirms the allegations," he said.

TV journalist Vladislav Listyev was shot dead in his apartment building in Moscow on March 1, 1995. The crime was one of the most high-profile assassinations of the 1990s, marking the high point of unprecedented crime wave that overcame the country after the collapse of Soviet Union.

Politkovskaya, a journalist for the oppositional newspaper Novaya Gazeta, was shot dead in her apartment building on October 7, 2006. Her murder is believed to be linked to her extensive coverage of human rights abuses in Chechnya. She was also a fearless critic of the Kremlin.

MP Golovlev was shot dead in August 2002.

Berezovsky, who is wanted by Russian authorities on charges of fraud and deception, has been hiding in the UK since 2000. In 2003, a British court refused to extradite the businessman to Russia.