Afghan President Ashraf Ghani left open on Saturday the possibility for talks with militants who accept peace but said the door is closed to those who cause tragedies like recent attacks in the capital, Kabul. <br/><br/>An attack on the Intercontinental Hotel in Kabul on the 20th of last month and a suicide bombing on a crowded city street a week later have stoked public anger and stepped up pressure on Ghani's government to improve security. <br/><br/>The attacks, which killed more than 130 people and were claimed by the Taliban, have also raised fresh doubt about long-running efforts to initiate talks with the insurgents. <br/><br/>The President's office said on Tuesday the militants had crossed a "red line" and peace would have to be won on the battle field.