Rwanda accuses Uganda of supporting rebels and dissidents opposed to Kagame’s government, a charge Uganda denies.
President Yoweri Museveni and his Rwandan counterpart Paul Kagame are in Angola. According to sources, the presidents will be part of a one-day Quadripartite Summit in the Angolan capital, Luanda, on an invitation by Angolan President João Lourenço.
Congolese President Felix Tshisekedi is also expected to attend the function.
Top on the agenda is the discussion on security in the great lakes region.
This is the second time the two leaders are meeting since the rise in tensions between the two countries that resulted into the closure of the border by Rwanda.
President Yoweri Museveni recently wrote to his Rwandan counterpart, Paul Kagame, over the alleged presence of Rwandese dissidents in Uganda
The closure, early this year, affected the flow of goods and people across their common border.
Rwanda accuses Uganda of supporting rebels and dissidents opposed to Kagame's government, a charge that Museveni denies.
Uganda also accuses Rwanda of infiltrating it's security systems.
The four heads of state are also expected to discuss the Ebola crisis in eastern DR Congo which has claimed over 1,600 people, according to World Health Organisation.
The virus has also crossed to Uganda, killing three people in the last one month.