Peter Hahn, a naturalised US citizen and Korean-American who runs a Christian non-profit organisation in the Chinese city Tumen on the border with North Korea, is being investigated by Chinese authorities for the last three weeks, has had his bank accounts frozen and is not permitted to leave the country. People working in the region have been quoted by Hongkong's South China Morning Post (August 7, 2014) as saying that Peter Hahn's case appeared to be part of a wider sweep of christian-run NGOs and businesses along the Chinese side of the border with North Korea. President Xi Jinping has launched a wide crackdown on underground churches.