The Saturday siege of the Interior Ministry building in the Somalian capital of Mogadishu ended with all three attackers having been killed by security services, local media reported.
According to the Garowe Online media outlet, at least 10 people died and 20 more were injured as a result of the attack. The list of the victims includes employees of the Interior Ministry and servicemen.
"A second blast occurred outside Sayidka Hotel which is opposite the police building where the first blast took place," Major Nur Ali, a police officer said adding gunfire was continuing after the initial explosions.
Earlier, the Somali police have cordoned off all the roads leading to the blast site. Several ambulances and fire brigades have arrived at the scene.
The al-Shabaab terrorist group has claimed responsibility for the attack.
"A car bomb exploded… it is too early to know (the) casualty," Major Mohamed Hussein, a police officer, said moments after the blast.
According to Goobjoog News, the explosion was reportedly a suicide bombing, in which a vehicle was loaded with explosives.
It was reported that a powerful explosion occurred at a checkpoint in the center of Mogadishu; shots were heard.
Somalia has suffered from multiple terrorist attacks with dozens of people dying and dozens injured almost every month.
Four local officials were killed in April by militants from the al-Shabab group in an attack on an African Union base in the country's south.