Japanese Prime Minister Shinzo Abe has made his third ritual offering to the controversial Yasukuni Shrine for war dead, but again he did not visit in person to avoid angering Asian victims of Japan‘s war-time aggression.

South Korea‘s Foreign Ministry expressed “deep regret” Thursday. “Our government cannot help but express deep concerns and regret over Prime Minister Abe‘s offering to the Yasukuni shrine that glorifies its past wars of aggression and honors war criminals,” ministry spokesman Cho Tai-young said in a briefing.

“I once again call on Japanese politicians to try to build up trust from the international community on the basis of humble reflection on its history,” Cho added.

Visits by Japanese leaders to the shrine in central Tokyo have outraged China and South Korea, which suffered under Japanese occupation and colonization in the 20th century, because war-time leaders convicted as war criminals by an Allied tribunal are honored there along with Japan’s war dead.

Abe made the offering in the name of the prime minister to mark the shrine’s autumn festival, which runs from Thursday until Sunday, a shrine official told Reuters. The official said the offering was made before Thursday, but gave no details.

A deputy government spokesman said Abe made the offering in his private capacity and that the government is in no position to comment, adding that it was not aware that the offering was disbursed from public funds.

“I believe it’s natural to express homage to those who fought and sacrificed their precious lives for the sake of their country, and to pray for the repose of their souls,” Deputy Chief Cabinet Secretary Katsunobu Kato told reporters.

It was the third time that Abe has sent an offering to the shrine since he returned to office after his December election victory. He has not visited the shrine in person because he wants to rebuild relationships with China and South Korea.

His previous offering was made in August.

Sino-Japanese ties have been troubled for months because of a sovereignty dispute over tiny islands in the East China Sea, known as the Senkaku in Japan and the Diaoyu in China.

Japan’s relations with South Korea have also cooled over a separate territorial dispute.

Abe, an outspoken nationalist, has said he regretted not visiting the shrine while he was prime minister in 2006-2007.

Two ministers from Abe’s cabinet are considering visiting the shrine during the autumn festival, Kyodo news agency reported.

Sino-Japanese ties have been overshadowed for years by what Beijing says has been Tokyo’s refusal to admit to war-time atrocities committed by Japanese soldiers in China between 1931 and 1945. Memories of a brutal Japanese occupation also run deep in South Korea.

(news reports)