In 1888 the British blockaded the area due to the raids by the Hasanzai and Akazai aided by the Madda Khel into the Agror valley. While more stringent measures were being organized, Major Battye and Captain Urmston and some sepoys of the Fifth Gurkhas were surprised and killed by Gujar dependents of the Akazai. Hashim Ali, the head of the Hasanzai and Akazai, was suspected of having instigated the attack. An expedition was sent in the same year, with the result that the tribes paid the fines imposed upon them, and agreed to the removal of Hashim Ali from Tor Ghar and the appointment in his place of his near relative and enemy Ibrahim Khan (Hasanzai Tribe Elder). In 1890 the tribe opposed the march of troops along the crest of the Black Mountain, and an expedition was sent against them in the spring of 1891. Immediately after the withdrawal of the troops, the Hindustanis and Madda Khel broke their agreement with the British Government by permitting the return of Hashim Ali Hasanzai. A second expedition was dispatched in 1892 which resulted in the complete pacification of the Black Mountain border.