Politicians from across the political spectrum have been moved to comment on the sight of Prince Harry in a Nazi uniform at a friend's party.

The story, which has sparked damaging headlines across the globe, is refusing to go away this weekend.

The Queen is said to be deeply concerned by Harry's actions, while Tory leader Michael Howard, whose grandmother died in a concentration camp, insisted that the prince's apology to his father was insufficient.

There was also criticism from Silvan Shalom, the Israeli foreign minister, Javier Solana, the EU foreign policy chief, German politicians and the Simon Wiesenthal Centre.

Howard, who last month had his first private meeting with the Prince of Wales since becoming Tory leader 14 months ago, said: "It would be appropriate to hear from him in person.

"Prince Harry has apologised and I have no doubt that his father and his family will have a good deal to say to him in private."

Charles Kennedy, the Liberal Democrat leader, added: "Given the great reservoir of goodwill for himself and his brother because of the loss of their mother, he should bring himself forward in a public way, just to make that apology all the more personal."

However, the lord chancellor, Lord Falconer, said on BBC1's Question Time that there was no need of a further apology.

"I think already he must understand what has happened and that should be the end of it," the Cabinet minister said.