Two more suspects were charged by a Ugandan court with being involved in the twin blasts in July that killed more than 70 people in the Ugandan capital Kampala, media reports said on Thursday.

Twin blasts rocked Kampala on July 11, killing 76 people mostly watching the final match of the FIFA World Cup.

The Somali militant group of Al Shabaab has claimed responsibility for the deadly attacks. It has threatened several times to attack Uganda and Burundi in retaliation for their deployment of peacekeeping troops in Somalia under the African Union (AU).

During the 15th AU summit held in July, AU Commission Chairman Jean Ping announced that the regional body is aimed at mobilizing additional 4,000 troops to boost the current 6,100 strong AU peacekeeping force in Somalia.

Guinea is already finalizing the deployment of a battalion while Djibouti, a member of the Inter Governmental Authority on Development (IGAD), is expected to contribute another battalion.