The Japanese prime minister discussed the billion-dollar jet programme during a meeting in London with British Prime Minister Keir Starmer.

The Prime Minister Keir Starmer will welcome his Japanese counterpart Sanae Takaichi to Downing Street on Sunday ahead of the crucial G7 summit with other world leaders next week

Keir Starmer is set to meet with Japanese prime minister Sanae Takaichi on Sunday at Downing Street