Floods in parts of Bugisu, Mbale and Kapchorwa initially killed 10 people on Sunday, the Ministry of State for Relief, Disaster Preparedness and Refugees in the Prime Minister’s Office said in a statement on Sunday.
But the death toll rose again on Monday.
Uganda Red Cross spokeswoman Irene Nakasita told reporters that so far rescuers have recovered 21 bodies in Mbale and three more in Kapchorwa.
She said a truck carrying relief supplies was on its way to help displaced people in the affected areas.
The torrential rains come on the heels of a prolonged drought across large swaths of the country that has left many areas parched and crops in fields scorched.