MELBOURNE, Australia (AP) — Papua New Guinea’s Prime Minister James Marape accused Joe Biden of disparaging the South Pacific island nation by implying that an uncle of the U.S. president had been eaten by “cannibals” there during World War II.

Biden’s comments offended a key strategic ally as China moves to increase its influence in the region.

The president spoke at a Pennsylvania war memorial last week about his Army Air Corps aviator uncle Ambrose Finnegan, who was shot down over Papua New Guinea, which was a theater of heavy fighting.

“They never found the body because there used to be — there were a lot of cannibals for real in that part of New Guinea,” Biden said, referring to the country’s main island.