NAIROBI, Kenya — Kenya's prime minister was evacuated from his office after a grenade was discovered in another part of the building, and police cordoned off the area to search for additional threats, officials said Tuesday.
Prime Minister Raila Odinga's communication adviser, Salim Lone, said Odinga was advised to leave his office shortly after 1 p.m.
Deputy police spokesman Charles Owino said a plumber found the grenade behind a water tank as he was checking the water system near the underground parking lot at Odinga's office building.
Owino said the grenade was sent to bomb experts to check if it is live. He said police with sniffer dogs also searched the office building to check for additional threats. Owino said no other staff were evacuated from the offices. However, some workers from the offices could be seen outside the building huddled in groups.
"So far there are no theories on how the grenade got there," Owino said.
Kenya has seen several recent grenade attacks that police have blamed on followers of al-Shabab, Somalia's most powerful militant group.
Three grenades exploded at a political rally in downtown Nairobi in June last year, killing six people. In December two traffic police died when they were shot and a third was seriously injured by a grenade. One person was killed in a grenade attack on a bus company that same month.