Social media users said Seiji Kihara had bad manners and ‘more attitude than the prime minister’ but it was his mother’s comments that struck home

A senior aide to Japan’s prime minister, Fumio Kishida, has apologised for putting his hands in his pockets during an official trip to the US, admitting that his mother had scolded him and told him she was “ashamed” of him.

Seiji Kihara, the deputy chief cabinet secretary, revealed on YouTube that his mother had read comments that he was “disgracing his parents” after he was caught with his hands in his trouser pockets as Kishida spoke to reporters outside Blair House in Washington.