Tensions soared with the Pakistani One Unit program, and both countries withdrew ambassadors and diplomatic staff in 1955. The Pakistani Embassy in Kabul and consulates in Kandhar and Jalalabad were attacked by mobs. In 1960, major skirmishes broke with the Afghan Forces massing out on the Afghan side of the border with tanks. These skirmishes saw the Pakistan Air Force bombarding Afghan forces. This bombardment led to a brief hiatus in the skirmishes. On 6 September 1961, Kabul formally severed diplomatic relations with Pakistan. In 1950 the House of Commons of the United Kingdom held its view on the Afghan-Pakistan dispute over the Durand Line by stating: