LONDON: British Prime Minister Boris Johnson on Sunday urged China to join Western nations in condemning the Russian invasion of Ukraine.

“As time goes on, and as the number of Russian atrocities mounts up, I think it becomes steadily more difficult and politically embarrassing for people either actively or passively to condone Putin’s invasion,” he told the Sunday Times.

There were now “considerable dilemmas” for countries who were yet to speak out against Russian President Vladimir Putin, he said, adding: “I think that in Beijing you are starting to see some second thoughts.”

Ukraine on Saturday called on China to condemn “Russian barbarism” after dozens were killed in new strikes.

Ukraine and the United States are concerned about Chinese potentially sending military aid to Russia or helping Moscow circumvent Western sanctions.

US President Joe Biden has warned Chinese leader Xi Jinping of “consequences” if he backs Russia, but Beijing has so far showed no sign of criticising the invasion.

Johnson called the crisis a “turning point for the world” during a speech at his Conservative Party conference attended by the Ukrainian ambassador to London, Vadym Prystaiko.