NEW : Sudanese president 's plane left Iran for China but turned back , Sudanese officials say . China : Last week , the advocacy group Human Rights Watch called China 's invitation to al-Bashir `` an affront to victims of heinous crimes committed in Darfur . '' There were fears that some countries would act while his plane was above their airspace , the officials say . The Sudanese president was scheduled to visit China .
NEW : Sudanese president 's plane left Iran for China but turned back , Sudanese officials say . China : There were fears that some countries would act while his plane was above their airspace , the officials say . The Sudanese president was scheduled to visit China .