The US has marked a year since Russia invaded Ukraine by announcing a new range of sanctions against Russia and new military aid for Ukraine.
The White House has said there is no indication three flying objects blasted out of the sky over the weekend by the US military are linked to alleged Chinese spying.
The sensors from the first suspected Chinese spy balloon shot down over the US have been recovered from the Atlantic Ocean, the US military says.
The US has shot down another unidentified flying object in the fourth military operation of its kind this month.
Nearly 100 million people in Canada and the US brace for some of the coldest air on earth, as a record-breaking deep freeze hits North America.
Presence of Chinese balloon is likely to complicate efforts to reset relations with Beijing
