Hamid Karzai, the Afghan president, has urged Pakistan to help his country defeat fighters who he says are bent on destabilising both countries.<br /><br />Karzai made the appeal during a meeting with Nawaz Sharif, the Pakistan prime minister, during his one-day visit to Islamabad on Monday.<br /><br />Al Jazeera's Imtiaz Tyab reports from Islamabad.
