Pakistan, May 18 -- Britain is working with the United States (US) to ensure a ceasefire between India and Pakistan endures and that "confidence-building measures" and dialogue take place between the nuclear-armed neighbors, Foreign Minister David Lammy said on Saturday.

The nuclear-armed South Asian arch rivals agreed on May 10 to a ceasefire, brokered by the US, in their worst fighting in nearly three decades, which followed a deadly attack on tourists that New Delhi blamed on Islamabad. Pakistan denies involvement.

Last week's hostilities between Pakistan and India raised alarm among world powers about a full-blown war in South Asia. Britain was among several countries that called for restraint, with Prime Minister Keir Starmer sayin...