A suicide bomber blew himself up inside the main police academy in Somalia's capital Mogadishu on Thursday, killing at least 13 police officers, officials said.
"A man wearing an explosive vest entered the camp disguised as a policeman, and blew himself up," police officer Mohamed Abdulle said. "There are casualties, and many injuries."
The militant Islamist group al Shabaab claimed responsibility for the attack.
(More details are awaited.)