A human rights group has warned of a rising death toll from China's crackdown against the banned spiritual group Falun Gong. Another custody-related death at the weekend has brought the known total to 22. The Hong-Kong based Centre for Human Rights says Su Gang died as a result of treatment he was given in a psychiatric hospital earlier this month. They claim the normally healthy Su had been forcibly injected twice a day with unknown drugs for seven days and died just over a week after being sent home. Like dozens of other cases, the Chinese security authorities have suppressed much of the information around Su's case, but public reports claim the government has destroyed the group it considers an evil cult that brainwashes its followers. Opponents have again called for international help to stop the deaths.