Having learned that Obote was planning to arrest him for misappropriating army funds, Amin seized power in a military coup on 25 January 1971, while Obote was attending a Commonwealth summit meeting in Singapore. Troops loyal to Amin sealed off Entebbe International Airport and took Kampala. Soldiers surrounded Obote's residence and blocked major roads. A broadcast on Radio Uganda accused Obote's government of corruption and preferential treatment of the Lango region. Cheering crowds were reported in the streets of Kampala after the radio broadcast. Amin announced that he was a soldier, not a politician, and that the military government would remain only as a caretaker regime until new elections, which would be announced when the situation was normalised. He promised to release all political prisoners.