A Russian businessman linked to the fatally poisoned former security agent Alexander Litvinenko is continuing to undergo outpatient treatment, his ex-wife said in comments published Thursday.

The daily Izvestia published an interview with Dmitry Kovtun's former wife Marina a day after Kovtun's German attorney said he was making arrangements with Hamburg prosecutors investigating the case for Kovtun to visit the German city and give statements to police.

Kovtun is one of three men who met with Litvinenko on Nov. 1 at a London hotel bar. Litvinenko later fell ill and died of poisoning by the radioactive isotope polonium-210. On his deathbed, he accused President Vladimir Putin of being behind the poisoning — accusations the Kremlin has repeatedly denied.

Kovtun was hospitalized in Moscow for suspected radiation poisoning in December, and German authorities said they found traces of polonium-210 in locations in Hamburg visited by Kovtun before he traveled to London for the Nov. 1 meeting.

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The locations included the apartment of his ex-wife, where he spent two nights in late October, and the car that picked him up from the Hamburg airport when he arrived from Moscow.

"After examination at a Moscow clinic, Dmitry does not look bad," his ex-wife, identified as Marina B., was quoted by Izvestia as saying. "However, he continues to take medications daily and undergoes outpatient treatment twice a week.

"I am sure he is innocent. He would have never brought poisonous substances into our home. Dmitry is not the kind of person who could put our children's health and lives at risk," she was quoted as saying.

Kovtun, who has denied involvement in Litvinenko's death, has been questioned by Russian authorities in the presence of British investigators in Moscow.

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