Senior U.S. officials are advising Ukraine to hold off on launching a major offensive against Russian forces until the latest supply of U.S. weaponry is in place and training has been provided, a senior Biden administration official said on Friday.

China's Foreign Minister Wang Yi on Tuesday signed agreements in Tonga for police equipment and fisheries cooperation on a tour through the Pacific islands region where Beijing's ambitions for wider security ties has caused concern among U.S. allies.