Putin aide says Abu Dhabi talks on Ukraine substantial and useful

‌Yuri Ushakov, ​a ‌foreign policy adviser to President Vladimir ‌Putin, said ‌on Wednesday that two ⁠days ​of ⁠talks on a ⁠potential Ukraine ​peace deal in ⁠Abu Dhabi had ⁠been ​substantial and ⁠useful.