UGANDA'S assistant finance minister has been arrested and detained on accusations of diverting metal roofing sheets meant for a relief program in the restive northeastern Karamoja region, police said. Amos Lugoloobi's arrest is the second of a minister in recent weeks over the roofing sheets' diversion. Police said Lugoloobi's arrest was authorised by the Director of Public Prosecutions (DPP) as part of "investigations into the alleged theft and diversion of iron sheets meant for the Karamoja region." "The office of the DPP has sanctioned criminal charges against ... Lugoloobi," a police statement on Twitter said. "As a result, he has…