London (CNN) Nikolai Glushkov, a Russian exile who had links to compatriots who died in mysterious circumstances in the UK, has been found dead in his London home, his lawyer confirmed.

London's Metropolitan police said counterterrorism officers would lead the investigation "as a precaution because of associations that the man is believed to have had."

Police did not name Glushkov, saying only they were investigating the death of a man in his 60s in southwest London. His lawyer, Andrei Borovkov, confirmed his death to the Echo of Moscow radio station.

In a statement, police said there was "no evidence to suggest a link" to the poisoning of the Russian former spy Sergei Skripal and his daughter Yulia in Salisbury.

Police were called by ambulance services at 10.46 p.m. Monday local time to an address in New Malden, in the borough of Kingston. A neighbor, Pat Egan, said police knocked on her door at 3.30 a.m. local time to ask whether she or her husband had seen or heard anything.

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