A suicide bomber in police uniform blew himself up inside a police training camp in Somalia’s Capital of Mogadishu on Thursday, killing at least 15 personnel, Reuters reported.

Police spokesperson Mohamed Hussain said the bomber infiltrated the General Kahiye Police Training Academy with explosives strapped to his body and detonated them during a parade. “So far 15 have died and 17 others were injured,” Police official Abdullahi Nur said.

Militant group Al-Shabaab has claimed responsibility for the attack. “We will give details of casualties later,” Abdiasis Abu Musab, the group’s military operations spokesperson told Reuters.