China has described Iran’s appointment of Ayatollah Sayyid Mojtaba Hosseini Khamenei as its new Supreme Leader as a completely internal affair. Foreign Ministry spokesperson Guo Jiakun said at a press conference that the decision was made in accordance with Iran’s constitution. Earlier, Chinese Foreign Minister Wang Yi urged respect for Iran’s sovereignty and warned against any external attempts to alter its political system, saying that so-called color revolutions or regime-change plans would never gain public support.

Meanwhile, U.S. President Donald Trump expressed dissatisfaction with the new Iranian leader, according to a Fox News program. Host Brian Kilmeade said he spoke with Trump after the announcement, and Trump told him he was “not happy,” though no further details were provided.

The Assembly of Experts, an 88-member body, selected Mojtaba Khamenei as Iran’s third Supreme Leader shortly after midnight Tehran time on Sunday, following the death of Ali Khamenei in a U.S.-Israeli attack on February 28.