An airstrike killed the head of intelligence of the Somali-based extremist group Al Shabaab, who is believed to have been among those who planned attacks on Kenyans, Kenya's military said Thursday. Al Shabaab denied the claim.

Mahad Karate, also known as Abdirahim Mohamed Warsame, was killed along with 10 mid-level Al Shabaab members and 42 recruits in an airstrike 10 days ago in Nadris camp in Somalia's south, military spokesman Col. David Obonyo said.

Al Shabaab denied the claim, saying it was aimed at drawing attention from "significant losses" of Kenyan soldiers in a recent attack by Al Shabaab in Somalia.

"The claims by Kenyan government that it killed what they called the Al Shabaab intelligence chief is a mere fabrication," the online Al Shabaab radio Andulus said.

Karate had gone to the camp to preside over a graduation ceremony for an estimated 80 recruits into the Amniyat wing of Al Shabaab, Obonyo said. Obonyo said suicide bombers deployed from the Amniyat took part last month's attack on the Kenyan army base in El Adde, Somalia— believed to be worst defeat Kenyan forces have ever suffered in the battlefield. Al Shabaab claims more than 100 soldiers died in the attack. Kenyan authorities have declined to release the official death toll.

The U.S State Department says Amniyat is Al Shabaab's intelligence wing, which plays a key role in the execution of suicide attacks and assassinations in Somalia, Kenya, and other countries in the region.

The State Department in April designated Karate a terrorist, saying he played key role in the Amniyat, which was responsible for the April attack on Garissa University College in Kenya that resulted in nearly 150 deaths.

Al Shabaab wants to topple Somalia's weak government and has launched extremist attacks on neighboring countries that have sent troops to back Somalia's government.