President of the Somali Olympic Committee, Aden Yabarow Wiish, was also fatally injured in the attack, which took place at a newly-opened theatre as dignitaries celebrated a year since the launch of the country’s national television station.
Prime Minister Abdiweli Mohamed Ali was also in attendance but escaped without injury. At least seven people are said to have been killed by the blast.
Blatter said: “I am shocked to hear about the attack that has today taken the lives of several people in Mogadishu, including the President of the Somali Football Federation Said Mohamed Nur and Somali Olympic Committee President Aden Yabarow Wiish.
“I knew both men personally and can only say good things about their endless efforts to promote sport and football in their country. They will be sorely missed.
“At this very sad time, my thoughts and those of FIFA and the worldwide football community are with the families and loved ones of all the victims of this attack, and especially to the football and sport family of Somalia.”