Police spokesperson Fred Enanga said Abdallah Kabanda Musa, alias Mogo, was arrested in central Uganda while allegedly plotting attacks against security agencies and prominent individuals.

He said a loaded rifle, 11 mobile phones and a computer storage device with "radical materials" were recovered in a raid on the suspect's home.

The security agencies suspect he was part of the group that coordinated attacks at the central police station in Kampala in November last year.

The attacks prompted the Ugandan army to cross the border into the Democratic Republic of Congo to fight Islamic State (IS)-linked militants.