On 3 June 2010 without advance notice, the government's NGO Affairs Bureau (NAB) revoked the licence of the Bangladesh Centre for Worker Solidarity (BCWS) to operate as a NGO alleging the group was involved in instigating worker unrest. The BCWS strongly denied the NAB's claims and pointed out it was given no formal opportunity to rebut the allegations. On 16 June 2010, National Security Intelligence Agency officers detained Aminul Islam, one of the leaders of the BCWS when he appeared for a meeting with the director of labor. Islam states he was physically abused and threatened for two days until 18 June, when he escaped from custody while being moved from the facility where he had been detained. On 29 July 2010, after tripartite negotiations with government, workers, and employers, the government raised the monthly minimum wage for garment workers from 1662 taka (US$24) to 3000 taka (US$43). Workers contended the increase was less than needed to meet the rising cost of living for urban workers. As has occurred numerous times in the history of Bangladesh's ready-made garment industry, on 30 and 31 July, angry workers took to the streets. They blocked roads and damaged factory and other property. Security personnel responded with force, injuring scores of the protesting workers. On 30 July, the government accused Islam together with Kalpona Akhter, Babul Akhter of inciting worker unrest during the protests. The group has close ties with representatives of foreign apparel companies, nongovernmental organizations, and international trade union and labor rights groups. The leaders have denied the charges against them.