US Secretary of State John Kerry says he wants to "re-ignite" negotiations with President Bashar al-Assad to end the conflict in Syria. Speaking as the war enters its fifth year, Mr Kerry said it was "one of the worst tragedies any of us have seen". He said the international community was upping pressure on Syria's regime to hold new peace talks, saying "we have to negotiate in the end" with Mr Assad. More than 215,000 people are estimated to have been killed in the conflict. "We are working very hard with other interested parties to see if we can re-ignite a diplomatic outcome," Mr Kerry said in an interview in the Egyptian resort of Sharm el-Sheikh. He told CBS News the US was working with the moderate opposition in Syria as well as pursuing a diplomatic track with "a number of different critical players in this tragedy". "Everybody agrees there is no military solution; there's only a political solution," he said. For more Latest and Breaking News Headlines SUBSCRIBE to / user join.quizgroup.com?ref=81786