June 18 (Reuters) - A Russian-installed official acknowledged on Sunday that Ukraine had recaptured a village in the southern Zaporizhzhia region, its second gain on that front since it launched its counter-offensive earlier this month. Ukraine said last week it had regained control of about 100 square km (38 square miles) of territory in just over a week, recapturing a string of villages in Donetsk region to the east. See here for a complete list of exchanges and delays