A/HRC/42/CRP.1 While both parties seem to want to have a say on what to do with the oil, both seem to be positioning to place the blame on the other in case the feared environmental catastrophe materialises. 812. In mid-June 2019, the Under-Secretary-General for Humanitarian Affairs and Emergency Relief Coordinator, Mark Lowcock, reportedly received an initial written approval from the de facto authorities to proceed with a technical mission to assess the decaying oil tanker. Provided the Houthis continued to facilitate this work, the assessment team should have started its work by the end of June 2019.1309 In his briefing to the Security Council on 18 July 2019, Mark Lowcock informed the Council that the de facto authorities continued to delay the United Nations technical assessment.1310 813. The impact of an oil spill from the FSO Safer on the population of Yemen and other countries around the Red Sea would be of an unimaginable nature and dimension. The fact that access was denied to an assessment team for so long is beyond comprehension. The Group of Experts urges both sides to provide United Nations actors with the access needed to assess the situation and to carry out any work to prevent a disaster that would haunt Yemen and the region for generations. 814. In the case of an environmental catastrophe, the lack of measures by the parties to prevent such an event would amount to a further violation of their obligations under international human rights law, considering that an adequate and healthy environment is a precondition for the realization of several other human rights, mainly the economic, social and cultural rights described above. B. 1. Impact of the conflict on minorities Violations of freedom of religion and belief against the Baha’i 815. As de facto authorities imposed their monolithic control over northern parts of Yemen, the Group of Experts documented violations targeting Baha’is in Yemen. The Group also received allegations of individuals who self-identify as atheists1311 being targeted for their belief by the Houthis. The Group gathered further allegations of one member of a religious community suffering from enforced disappearance and torture in Houthi detention. Information relating to his case was withheld for reasons relating to his security and that of his community. (a) The targeting of Baha’is by the de facto authorities 816. The Group of Experts documented three cases of arbitrary arrest and detention of members of the Baha’i faith in Sana’a. The three individuals (two men and one woman) were arrested during a community event organized in Sana’a on 10 August 2016, where there were reportedly around 60 participants, mostly Baha’is and some described as “friends of the community”. The event was stormed by members of the security forces – all reportedly masked and armed – who took all the participants to detention places, including the national security detention facility and other unknown facilities. While most participants, including children and women, were reportedly released in the days that followed the arrest, a group of 11 individuals (including three women) reportedly remained in detention for almost a month. One of them was detained for about three and a half months, while others were released at different stages before that. While no charges were brought against them, detainees were reportedly forced to sign guarantees that they would not resume any community-based activities following their release.1312 They did not have 1309 https://reliefweb.int/report/yemen/under-secretary-general-humanitarian-affairs-and-emergencyrelief-coordinator-mark-19. 1310 https://reliefweb.int/report/yemen/under-secretary-general-humanitarian-affairs-and-emergencyrelief-coordinator-mark-20. 1311 Confidential Sources on File. 1312 Confidential Sources on File. 195