A political solution is the only way to end the Syria crisis, a senior Chinese official said ahead of the G20 summit in Russia on Thursday, warning world powers to be \"highly prudent\" over the issue. \"War cannot solve the problem in Syria. The current situation shows that a political solution is the only way to solve the issue,\" spokesman for the Chinese delegation Qin Gang told reporters, urging \"the concerned countries to be highly prudent and to be responsible\".