'major incident'. 10 fire engines, an aerial platform and 80 fire-fighters tackled the fire. The fire was under control at 5:32pm, more than 5 hours after the initial report, and was extinguished after 30 hours of firefighting. By the end of the day, no suggestion of a deliberate attack was made. Two teenagers were arrested the following day on suspicion of arson. However, the elder of the two was soon released without charge. The majority of the building damage occurred at the front of the complex, within the administrative block of the site (which consisted of office space and function halls). The men's and women's prayer area were not affected. According to news reports, 50% of the ground floor, as well as the first floor and the roof were ablaze. The site was evacuated by site staff and one man was hospitalised after he collapsed and blacked out from smoke inhalation. London Fire Brigade later reported that the "mosque itself is thankfully unaffected". Extensive structural damage led to complex demolition work (adjacent to the functioning TV studio, major A-road and main mosque) over several months in 2017. The blaze created a huge plume of smoke, visible for miles in South West London, and caused widespread traffic congestion, bus disruption and rail suspension. The A24 London Road, a major London A-road, was shut down for hours because of its proximity to Baitul Futuh. Notable events In 1999, the foundation stone was laid by Mirza Tahir Ahmad (the fourth head of the worldwide Ahmadiyya Community). In 2010, Baitul Futuh hosted BBC Radio 4's Question Time with Jonathan Dimbleby, Guardian columnist Polly Toynbee, Minister Sadiq Khan, Deputy Leader of the Liberal Democrats Simon Hughes, MP Daniel Hannan and a studio audience of 400. The mosque was voted one of the ‘Top 50 Buildings in the World’ by The Spectator magazine in 2010. Lord Eric Avebury was awarded the first Ahmadiyya Muslim Peace Prize, in recognition of his lifetime of human rights work, at the National Peace Symposium hosted at Baitul Futuh in 2010. The 2010 plan to burn the Qur'an by the Pastor of the Dove World Outreach Center on the 9th anniversary of the 9/11 attacks was strongly condemned at the Baitul Futuh mosque by British faith leaders, representing various faiths, such as Church of England, Catholic Church, Judaism, Baháʼí Faith and other Christian and Islamic sects. The Baitul Futuh Mosque acted