Abramovich, who accepted a Ukrainian request to help negotiate an end to the Russian invasion of Ukraine, and at least two senior members of the Ukrainian group were affected, the WSJ report said.
Symptoms included red eyes, persistent and painful tearing, and peeling of the skin on their faces and hands, the WSJ report added.
Abramovich and Ukrainian negotiators, including Crimean Tatar MP Rustem Umerov, have improved since then and their lives are not in danger, the WSJ reported.
A person familiar with the matter confirmed the incident to Reuters, but said Abramovich did not allow him to stop working.
The Kremlin said Abramovich had played a role in early peace talks between Russia and Ukraine, but the process is now in the hands of negotiating teams on both sides. Read the whole story
Russian forces invaded Ukraine on February 24 in what President Vladimir Putin calls a “special military operation” to demilitarize and “demilitarize” Ukraine. Ukraine and the West say Putin has launched an unprovoked offensive war.
(Report by Abinaya Vijayaraghavan in Bengaluru; Edited by Jon Boyle)
