Khabarov crossed the mountains in the fall of 1650 and this time was met with armed resistance. He built winter quarters at Albazin at the northernmost point of the Amur. After receiving reinforcements in June 1651 he set off down the Amur. By September they reached the mouth of the Sungari. By 29 September they reached Achansk near present-day Khabarovsk and decided to winter there. On 8 October they were attacked by about 1,000 local people, who, being defeated, appealed to their Manchu overlords. On March 24, 1652, a force of 2,000 Manchus and Koreans armed with artillery arrived from Ninguta and attacked Achansk. Khabarov somehow managed to defeat them. (The Manchu general, Haise, was later executed for his incompetence) Not knowing how many more Chinese were in the area, on 22 April he withdrew up the Amur. At one point he encountered another force of 6,000 Chinese, but was able to slip around them under cover of fog and darkness. Further upstream he met a force of 117 cossacks who had been sent as reinforcements. He learned from a captive that a new Manchu army was being gathered on the Sungari. On August 1 he reached the mouth of the Zeya. Here 136 of his men mutinied leaving only 212 loyal. (Since Khabarov mentions the mutiny immediately after mentioning the question of where to build winter quarters, it may have been connected with the question of whether it was wise to remain on the Zeya and await a possible Manchu attack.) From the Zeya he sent a report to the Yakutsk Voevode matter-of-factly describing the burning of villages, slaughter of natives and the torture of prisoners.