<p><br /> Britain and Pakistan have agreed to work harder together to fight Islamist militancy, following criticism by Prime Minister David Cameron of Pakistan's efforts in countering extremism.<br /> </p><p><br /> Cameron met Pakistani President Asif Ali Zardari at Chequers on Friday.<br /> </p><p><br /> "Both leaders appreciated the close co-operation that already exists between respective police forces and other security agencies," a joint statement from the leaders said.<br /> </p><p><br /> "The two leaders agreed that such co-operation needs to and will intensify."<br /> </p>
