Uganda has made arrests after two bombings in the capital Kampala killed at least 74 people.
A government spokesman did not say how many people have been arrested, but said the arrests came after an unexploded suicide-bomb belt was found at a third site in Kampala.
The Somali militant group Al-Shabaab which has links to Al-Qaeda has claimed responsibility for the attacks.
Uganda has troops stationed in Somalia as part of an African Union peacekeeping force. The blasts on July 11 hit two restaurants packed with people watching the World Cup final on TV.