The move comes as the two sides hold a second round of talks on normalizing bilateral relations Russia and the US have conducted another prisoner swap in Abu Dhabi, the Wall Street Journal has reported, citing CIA officials. Moscow reportedly released Ksenia Karelina, a US-Russian dual national jailed over donations to a charity that supports the Ukrainian military, while Washington freed Arthur Petrov, a German-Russian citizen arrested for allegedly exporting sensitive microelectronics.