A/HRC/42/CRP.1 refinery workers sustained burn injuries.114 On 29 June, a second attack was launched on the refinery, from which no further damage or casualties were reported. On 13 July 2015, in the afternoon, another series of rockets landed on the refinery, causing damage to at least two storage tanks and setting the tanks ablaze, which produced flames and black smoke for at least two more days.115 On both occasions, air pollution in the area and suffocation risks had reached critical levels.116 The emission of fumes also caused potential long-term health damage to the inhabitants of al-Bureiqa.117 On 15 July 2015, one rocket landed in the play yard of al-Masseela School in Kod al-Namer neighbourhood in al-Bureiqa without causing damage. Displaced civilians had sought temporary accommodation at the school during the fighting.118. Finally, on 17 July 2015, at 16:00 hrs, three rockets landed in close succession into Saleheddin Street of the same neighbourhood, destroyed two houses and two cars, and damaged one other house. One 12-year-old boy injured in the incident lost both of his legs. Attack on Residential Areas in Al-Mansoura 135. During the night from 30 June to 1 July 2015, Houthi-Saleh fighters fired multiple artillery rounds that hit various civilian objects in al-Mansoura, killing over 35 civilians and injuring over 40.119 The shelling originated from within Houthi-Saleh positions situated in the north-western side of al-Mansoura.120 The Houthi-Saleh fighters had reached the western side of the city through Lahij province and established positions in farms, plantations, and in a stone factory in the Beer Fadhl area.121 136. The shelling started at 23:00 hrs and continued until the next morning. Mortars and artillery rounds landed in civilian areas in Blocks 3, 4 and 5 of al-Mansoura. Several shells landed on busy Prison Street, where there are markets, shops, and hotels. Several rounds landed near the Infinity Hotel and one other round damaged the Royal Concord Hotel, both of which had offered shelter to displaced families. Several mortar and artillery shells also landed on residential houses, also in the neighbourhood of Prison Street. The incident occurred during Ramadan, when markets, shops, and streets were crowded during the late evening hours.122 137. During the attack in al-Mansoura, several consecutive shelling attacks were observed, whereby a second round hit the same location after a short period, often hitting those who gathered to assist the injured after the first explosion. Three examples of these double-tap attacks were reported during the 30 June attack on al-Mansoura. In this regard, one victim of the shelling stated that after one round damaged a civilian residence in Block 3, injuring eight civilians, a subsequent round landed in the same area while a team of paramedics and volunteers rushed to assist the injured. The explosion of the second round killed and injured those who had gathered, including a 17 year-old medical volunteer, who lost his leg.123 Killing of civilians and destruction of civilian property in Dar Sa’ad Confidential Sources on File. Also see Human Rights Watch, “Yemen, Houthi artillery kills dozens in Aden”, July 2015, available at: https://www.hrw.org/news/2015/07/29/yemen-houthiartillery-kills-dozens-aden. Also see https://www.aljazeera.com/news/2015/06/yemen-houthis-attackoil-refinery-aden-150627152313777.html. 115 Confidential Sources on File. 116 Incident two: Rocket attacks on Aden oil refinery. 117 Confidential Sources on File. Also see Centre for Public Opinion Studies and Social Research, “Report on the Human Rights Violations in the South Committed by Houthi Militias and Forces of the Yemeni Army Loyal to the Former President Ali Abdullah Saleh”, August 2015. 118 Confidential Sources on File. 119 Confidential Sources on File. 120 Confidential Sources on File. 121 Confidential Sources on File. The factory was called the Athub Factory, or the ‘Red Stones Factory’. 122 Confidential Sources on File. 123 Confidential Sources on File. 114 32