At least 16 people were killed as two car bombs exploded outside the law courts in Somalia’s capital Mogadishu and gunmen stormed the building on Sunday, before a gun battle erupted with security forces besieging the compound, witnesses said. A large blast hit an area near Mogadishu airport hours later, residents said. It was not immediately clear who carried out the attacks, but al Shabaab militants linked to al Qaeda have claimed responsibility for a number of suicide bombings in Mogadishu this year. “About seven well-armed men in government uniform entered the court today as soon as a car bomb exploded at the gate. We thought they were government soldiers,” said Aden Sabdow, who works at the mayor’s office adjacent to the court. “There are many government officials inside the court which has been busy these days,” he said. “Armed men entered the court and then we heard a blast. Then they started opening fire. We do not know the number of casualties,” said Hussein Ali, who works at the courts.