Seven people were killed Saturday in a double car bomb attack claimed by the militant Shabaab group near the presidential palace in the Somali capital Mogadishu, police said.
A loud blast destroyed the office in Mogadishu's Hodan district and sent up huge clouds of smoke.
At least six people were killed when a suicide car bomb struck a local government office in central Mogadishu on Sunday, destroying the building and a Quranic school opposite.
Police said a car bomb parked in front of a restaurant at the busy street of Maka al Mukaram had exploded.
Al Qaeda-linked al Shabaab have used car bombs to target government buildings in the capital.
Witnesses said the explosion was caused by a car bomb on one of the capital's busiest streets that was packed with people heading home from work.
Somalia's extremist group al Shabaab set off a suicide car bomb at a security checkpoint about 15 km (nine miles) outside the capital Mogadishu on Thursday, the group's spokesman and a police official told Reuters.