Raqqa, Syria (CNN) US-backed militias on Friday declared the "total liberation" of the Syrian city of Raqqa, which for more than three years was the de facto capital of ISIS. The ceremony was held in the same dusty Raqqa stadium where ISIS fighters made their last stand earlier this week. Prison cellsThe SDF believe ISIS held many detainees within the stadium, the group's biggest prison in the city, SDF chief press officer Mustafa Bali said. A few ISIS fighters are believed still to be at large in the network of tunnels that ISIS dug under the city. US Secretary of State Rex Tillerson also congratulated the SDF and the Syrian people on the liberation of Raqqa.

Source: CNN October 20, 2017 09:52 UTC