KAMPALA, Uganda

The Ugandan military has captured a commander of an extremist group, Njovu, accused of killing two tourists last month. Njovu was captured during an exchange of fire on Lake Edward near Uganda’s border with Congo.

The fighting resulted in the deaths or injuries of an unknown number of rebels. Njovu has been in charge of operations such as the murder of a South African tourist and her British husband in October, and their Ugandan guide was killed and their vehicle set on fire.

Ugandan President Yoweri Museveni has called for the elimination of the ADF, a rebel group linked to the Islamic State group, following a tourist attack. Ugandan troops are hunting the ADF in Congo, where it is among dozens of rebel outfits operating in a large territory.

The ADF, which originated in Uganda but fled to eastern Congo, is accused of carrying multiple attacks targeting civilians. It is not known to claim responsibility for these attacks. The group has occasionally conducted cross-border attacks, with one in June involving a raid on a Ugandan community near the border.