February 19
19:37
2016
US Secretary of State John Kerry warned there was "a lot more work to do" for a ceasefire in Syria that had been due to begin on Friday, as Kurdish-led forces seized a key town from the Islamic State group. "Everyone recognises the complexity of this endeavour, and there is certainly a lot more work to do," Kerry said in a statement during a visit to London. Kerry said talks between US and Russian negotiators had been "serious and so far constructive, with a few tough issues still to resolve".