A four-year-old Chinese girl has died at a hospital in Los Angeles after a crowdfunding campaign raised enough money for her parents to take her to the United States for cancer treatment. Yuan Yuan, who lived with her family in Nanjing, Jiangsu province, was diagnosed with a brain tumour in June last year, after which a national crowdfunding campaign to pay for her treatment spread quickly through Chinese social media, Xiandai Kuaibao reported. Her parents received more than six million yuan (US$865,295) in donations within a month and took her to the US for treatment in July last year, the report said. Yuan Yuan died at Children’s Hospital Los Angeles on October 19, after fighting the disease for 16 months, according to a written statement from the hospital to the newspaper. The statement said chordoma was a rare and very invasive cancer, which had extended into various parts of Yuan Yuan’s body when she was admitted to the hospital. It added that the family had spent $820,000 on treatment, which did not include additional expenses outside the hospital. In response to debate over whether the donated money was spent appropriately, Yuan Yuan’s parents said they had also borrowed about one million yuan and were trying to sell a property they owned to raise more money, adding that they would release detailed expenses later, the report said. China has passed a new charity law that smoothes the way for nonprofit groups to legally register and raise funds, as well as making it legal for unregistered groups to operate, a rare move in China’s otherwise tight restrictions on NGOs and charitable organisations. China’s new charity law provides much-needed clarity and transparency However, the trend of charitable crowdfunding that has spread on Chinese social media in recent years has caused confusion and suspicion over the use of the funds raised as there is usually no third party to oversee the process. A Shenzhen author was put under investigation by the local authority in December after he raised nearly US$400,000 for treatment for his daughter, who is suffering from leukaemia, via WeChat, as the amount far exceeded the cost of her treatment in China and he was later revealed to own several properties in the city.