LONDON - British Prime Minister Rishi Sunak wants to work with allies to discuss a pathway for Ukraine to join NATO, but the exact mechanism is up for discussion, his spokesperson said on Monday, following talks with U.S. President Joe Biden.

The spokesperson said it would not be appropriate for Ukraine to join NATO when the war with Russia was going on, but Sunak believes Ukraine's "rightful place" is within alliance.

"We want to work with the U.S. and our allies on the pathway for Ukraine to join," the spokesperson told reporters.

(Reporting by Elizabeth Piper; Editing by Andrew MacAskill)