Representatives from the Taiwanese and Chinese militaries will meet this summer in Hawaii in their first formal exchange since the two sides split amid civil war six decades ago, the Chinese-language United Daily News reported on Monday.

The report said that the militaries will take part in a workshop on regional security and crisis management under the auspices of the Asia-Pacific Center for Security Studies, a think tank with links to the U.S. Pacific Command.

The Taiwanese Defense Ministry would not comment on the report. The newspaper said other militaries will also participate in the workshop, but it did not say whose.

In a related report on Monday, a Chinese-language newspaper said a retired officer with 20 years of military service has been accused of leaking documents about war plans and other military secrets to Beijing.

The report said the officer, identified only by his surname Chang, has taken up residence in China after leaking secrets including troop deployment plans to be used in the event of a war. It said Chang is afraid to return to Taiwan.

A Defense Ministry official confirmed that Chang was under investigation but refused to elaborate.