A wave of suicide bombings has hit targets across northern Somalia as political talks were taking place in neighbouring Kenya.
There was no immediate word on who was behind the blasts in Hargeisa and Bosasso in which about 40 people were hurt.
In recent months, Islamist rebels have launched attacks to coincide with UN-led efforts to end the turmoil in the Horn of Africa nation.
In Hargeisa, in the Somaliland region, witnesses said three suicide bombers attacked a government office, a UN Development Programme compound and the Ethiopian embassy.
About 30 injured people were brought to the hospital for treatment.
In Bosasso, in neighbouring semi-autonomous Puntland, two suicide bombers blew up cars inside the Puntland Intelligence Service compound, wounding at least eight soldiers.
The attacks were made as leaders of the Western-backed interim government met regional heads of state for talks in Nairobi.
The four-year-old administration is under pressure to end the chaos and share some power with moderate opposition figures.
Puntland and Somaliland had been relatively quiet in recent months compared with southern Somalia, where the government and its Ethiopian military allies face Islamist insurgents.
But Puntland has seen an increase in lawlessness, particularly piracy and kidnappings.