Tavistock Square was the scene of one of the four suicide bombings on 7 July 2005. The bomb was detonated by 18-year-old Hasib Hussain on a double-decker bus bearing route number 30; it had been diverted from its normal route along Euston Road because of traffic disruption by the other three bombings at tube stations. The bomb exploded immediately outside the British Medical Association building, many of whose staff came out to give what help they could. The explosion killed 13 passengers, plus Hussain himself. Many others were injured. In September 2018, a memorial honouring the victims and the efforts of those who gave assistance was unveiled in Tavistock Square Gardens, replacing a plaque that had been fixed to the railings outside BMA House, opposite to the new site.