The summer of 1840 did not pass without serious interruptions to the British communications between Candahar and the Indus; nor without unexpected and ominous disasters before they were restored. General Willshire, with the returning Bombay column, had in the previous November stormed Mehrab Khan's ill-manned and worse armed fort of Khelat, and the Khan, disdaining to yield, had fallen in the hopeless struggle. His son Nusseer Khan had been put aside in favour of a collateral pretender, and became an active and dangerous malcontent. All Northern Beloochistan fell into a state of anarchy. A detachment of sepoys escorting supplies was cut to pieces in one of the passes. Quetta was attacked with great resolution by Nusseer Khan, but was opportunely relieved by a force sent from another post. Nusseer made himself master of Khelat, and there fell into his cruel hands Lieutenant Loveday, the British political officer stationed there, whom he treated with great barbarity, and finally murdered. A British detachment under Colonel Clibborn, was defeated by the Beloochees with heavy loss, and compelled to retreat. Nusseer Khan, descending into the low country of Cutch, assaulted the important post of Dadur, but was repulsed, and taking refuge in the hills, was routed by Colonel Marshall with a force from Kotree, whereupon he became a skulking fugitive. Nott marched down from Candahar with a strong force, occupied Khelat, and fully re-established communications with the line of the Indus, while fresh troops moved forward into Upper Scinde, and thence gradually advancing to Quetta and Candahar, materially strengthened the British position in Southern Afghanistan.