Ethiopian police were patrolling the country’s troubled Oromia region and the capital, Addis Ababa, on Sunday, following a week of unrest in which 166 people were killed and more than 2,000 arrested, after a popular singer was shot dead. In Oromia, 145 civilians and 11 members of security forces were killed, Girma Gelam, deputy police commissioner in the region, told the state-affiliated Fana Broadcasting Corporate. More than 2,280 people were arrested in Oromia and Addis Ababa, said police.