The U.S. dollar was almost flat in late trading on Friday.
The dollar index, which measures the greenback against six major peers, moved up slightly to 98.992 at 3 p.m. (2000 GMT).
In late New York trading, the euro slipped to 1.1643 dollars from 1.1652 dollars in the previous session, and the British pound fell to 1.3334 dollars from 1.3339 dollars in the previous session.
The U.S. dollar bought 155.29 Japanese yen, higher than 155.03 Japanese yen in the previous session. The U.S. dollar rose to 0.8044 Swiss francs from 0.8032 Swiss francs, and it was down to 1.3837 Canadian dollars from 1.3953 Canadian dollars. The U.S. dollar fell to 9.4059 Swedish kronor from 9.4173 Swedish kronor.
U.S. dollar stays flat
Russian forces attacked Ukraine's energy infrastructure overnight on Saturday, for the second time in less than a week, Ukraine's Energy Minister Denys Shmyhal said.
The strikes targeted the Burshtyn and Dobrotvir thermal power plants in western Ukraine, as well as substations and overhead transmission lines, the minister said.
He further said personnel unloaded units at nuclear power plants as a precautionary measure.
Ukraine's state-run energy company Ukrenergo has requested emergency assistance from Poland in the wake of the attack, Shmyhal added, while the company said it has imposed emergency power outages across most of the country.
The previous attack on Ukraine's energy facilities was carried out on Tuesday.
Russia attacks Ukraine's energy infrastructure 2nd time in a week: Ukrainian authorities
