Uganda's military has vowed to keep hunting terrorists but stated that ADF fighters who surrender will be given amnesty.
The bombing on Monday targeted the Jale Siyaad military academy.
The president of Uganda has accused a former leader from the Democratic Republic of Congo of providing sanctuary and resources to Islamist rebels.
Iranian President Ebrahim Raisi arrived in Zimbabwe on Thursday for the last visit on his tour of Africa.
The Abayudaya are our brothers and our sisters and the time has come for the State of Israel and JAFI to recognize this fact and welcome them into the fold of our people.
"At least 20 suspected ADF collaborators have been arrested, to assist with our investigations," the country's police force said in a statement.
The attack drew widespread international condemnation including from the United Nations and the African Union amongst other organizations.
How Israeli photo-journalist Lior Sperandeo moved from behind the camera to effecting change in East Africa.
Same-sex relations were already illegal in Uganda, as in more than 30 African countries, but the new law goes much further.