Uganda's military says the rebel Lord's Resistance Army suffered "considerable damage" in the assault on its bases in the Democratic Republic of Congo Sunday.
That assessment from spokesman Chris Magezi Monday came as forces from Uganda, Congo, and southern Sudan continued their offensive against the LRA.
Ugandan army officials say ground troops were inserted after Ugandan warplanes bombed LRA bases in Congo's Garamba Forests on Sunday.
A joint statement from the three governments involved said the attack destroyed the main base of rebel leader Joseph Kony.
There has been no confirmation of that from independent sources, nor any word on the fate of Kony and his top aides.
David Matsanga, the rebels' lead negotiator in peace talks with the Ugandan government, told VOA that the attack was "very regrettable" and that the world must condemn it.
The LRA has waged a 20-year guerrilla war against the Ugandan government. A 2006 cease-fire ended the fighting in Uganda but the group has become a regional threat, attacking villages and kidnapping people in the DRC, southern Sudan, and the Central African Republic.
Kony and two of his aides are wanted by the International Criminal Court on charges of war crimes and crimes against humanity.
The LRA and the Ugandan government have negotiated a peace deal but Kony has failed to show up multiple times to sign the accord.
Some information for this report was provided by AFP and Reuters.