The wife of former Russian spy Alexander Litvinenko has said that Boris Berezovsky had "many enemies" and that it was "not likely" he that he had committed suicide.
Marina Litvinenko, a friend of Mr Berezovsky, told The Daily Telegraph: "From my point of view it is not likely that he committed suicide,"
"He had a lot of enemies. He was an outspoken person and never tried to hide what he thought.
"When I talked to him last he was a little recovered and I believed he would be better. He started to take interest and to ask about my son."
How Boris Berezovsky died is still being investigated, although his Berkshire mansion has been declared safe by radiation experts.
Russian oligarch Boris Berezovsky has died at the age of 67.