At least one of the eight European military observers held prisoner by pro-Russia insurgents in eastern Ukraine has been freed. An AP photographer saw the observer get into a car today with representatives of the Organization of Security and Cooperation in Europe and drive away. The released man is a Swedish national who was released for health reasons, reports al-Jazeera. "He has a mild form of diabetes and so we decided to let him go," says a separatist spokeswoman. Earlier in the day, the eight observers had been shown in public for the first time since they were detained on Friday and accused of spying for NATO.