A US-backed alliance of Arab-Kurdish forces entered the key jihadist-held town of Tabqa on Monday as they pursued their campaign against the Islamic State group in northern Syria.

The Syrian Democratic Forces (SDF) have set their sights on Tabqa and the adjacent dam as part of their broader offensive for the city of Raqa, the Syrian heart of the jihadists’ self-styled “caliphate” since 2014.

Supported by US-led coalition air strikes and special forces advisers, the SDF surrounded Tabqa in early April.

On Monday, they entered it for the first time, the Syrian Observatory for Human Rights monitoring group said. […]