Almost 3,000 people have gone missing in Syria since the start of the uprising against president Bashar Assad more than four months ago, activists say.
One person is disappearing in Syria every hour, according to online activist group Avaaz.org. It says it has identified 2,918 Syrians arrested by security forces whose whereabouts are now unknown. More than 1,600 people have been reported killed, most of them unarmed protesters.
Although the uprising began in mid-March with calls for reform, the steadily climbing death toll and slow pace of reform has enraged the protes now calling for Assad's removal.