The US military has stepped up air strikes in Somalia since President Donald Trump took office and said he had killed more than 800 militants in two years.
The agency pointed out that he has called for the recruitment of recruits in Puntland, although experts say the size of his strength is unclear and is still a small player compared to Al-Shabab linked to al-Qaeda, which controlled a large part of Somalia once.
U.S. Africa Command (AFRICOM) said late on Thursday the latest strike targeted an ISIS-Somalia camp in Golis Mountains.
“At this time, it is assessed the air strike on May 8 killed 13 terrorists,” it said.
AFRICOM said in April it had killed Abdulhakim Dhuqub, identifying him as Islamic State’s deputy leader in Somalia.
Somalia has been mired in civil war and an Islamist insurgency since 1991 when clan warlords overthrew a dictator and then turned on each other.
Al Shabaab was pushed out of the capital Mogadishu in 2011, but retains a strong presence in parts of southern and central Somalia and has often clashed with Islamic State.