Afghan soldiers die as Taliban attack checkpoint in Kunar --- Taliban fighters have killed 21 Afghan soldiers in an attack on a checkpoint in Kunar province close to Afghanistan's border with Pakistan. -- At least one of the attackers was also killed and the Taliban told the BBC they had captured seven soldiers. -- Kunar Governor Shuja Ul Mulk told the BBC it was possible that Taliban infiltrators in the army had helped organise the attack. -- Mr Karzai's office said in a statement: "The Afghan president is saddened by this tragic incident, and therefore he postponed today's official trip to Sri Lanka." -- The government also confirmed that soldiers were missing, but put the number at six. -- Casualties among Afghan troops have been rising significantly since they took the lead in the war against the Taliban. - More, BBC, at: http://www.bbc.co.uk/news/world-asia-26312095