Ugandan police discovered an unexploded suicide vest and made several arrests after coordinated bomb attacks killed 76 soccer fans watching the World Cup final. Somali al Shabaab Islamists claimed responsibility for the attacks, but later denied the involvement of suicide bombers. The vest, found in Makindye, resembled evidence from other blast sites in Kampala. Police indicated that the vest was designed to be planted as an improvised bomb, rather than worn by a suicide bomber. A man named Yonis, who is an assistant to al Shabaab spokesman Sheikh Ali Mohamud Rage, stated in a telephone interview with Reuters that the presence of planted bombs indicates there was no suicide bombing. Coordinated attacks are a common tactic of al Qaeda and groups associated with Osama bin Laden's network. If these attacks are indeed carried out by al Shabaab, it would be the first time the group has expanded its efforts internationally. Analysts have raised concerns about potential support or funding from individuals in Uganda, or foreign militants within al Shabaab. Abdi Samatar, a Somalia expert at the University of Minnesota, stated that whether they are Somalis or foreigners, the impact remains the same as foreign elements now dominate the al Shabaab project. Kayihura did not provide additional information on the number or origin of suspects detained, but he did raise the death toll to 76 from 74. The al Shabaab militants have warned of further attacks unless Uganda and Burundi remove their peacekeepers from the African Union peacekeeping force in Somalia (AMISOM). They are in control of large areas in the southern and central regions of the chaotic country. Despite threats, the regional bloc IGAD stated that they will continue to support the government in Somalia. The executive secretary Mahboud Maalim announced plans to increase peacekeepers in Somalia to over 8,000, with hopes to have the additional troops by the second week of August. IGAD members, including Kenya, Uganda, Sudan, Ethiopia, Somalia, and Djibouti, have expressed a desire for 20,000 troops from the AU and United Nations to be deployed in Somalia. Uganda's opposition party, the Forum for Democratic Change (FDC), has called for President Yoweri Museveni to withdraw his peacekeepers and stated that they would do so if they won elections in 2011. FDC spokesman Wafula Oguttu told Reuters that there is no peace to maintain in Somalia and Uganda does not have any strategic interests there. He expressed concern that the country is sacrificing its children for no reason. Analysts believe that a sustained bombing campaign would harm Uganda's investment climate, but a one-time attack is unlikely to deter major companies like Tullow Oil from investing. Foreign direct investment in Uganda has increased due to oil exploration along the western border with the Democratic Republic of Congo. An American was among the casualties, and the US State Department confirmed that three FBI agents were on-site gathering evidence. An extra team was prepared to be deployed if needed. Opolot noted that there were no indications that the African Union summit scheduled to be held in Uganda this month would be called off due to the bombings.