Brown faced a major prime-ministerial challenge two days after entering office, when two unexploded car bombs were discovered in London on 29 June. The following day, a car was driven into the entrance of the main terminal of Glasgow International Airport in a second apparent terrorist attack, causing a fire and considerable damage to the building. Brown was born in Glasgow, leading to speculation that the attacks were motivated against him. As a result of both the London and Glasgow incidents, Brown chaired emergency COBRA meetings to review plans to protect the British public. He also spoke to the First Minister of Scotland Alex Salmond regarding the incidents.