By Brian Walker and Merieme Arif, CNN
(CNN) — Al-Shabaab militants raided a quarry in Kenya, separating non-Muslim workers from their Muslim counterparts and executing them, a spokesman for the group said Tuesday.
At least 36 bodies were found Tuesday dumped in the quarry in the village of Kormey, near the Somali border, the Kenyan Red Cross said.
Al-Shabaab said the attack was retaliation for mosque raids that Kenyan security forces carried out last month to weed out extremists.
Kormey is about 15 kilometers (9 miles) from the border city of Mandera, in an area where the Somalia-based Al-Shabaab militants are known to operate.
Last month, the Islamist militants ambushed a bus in Kenya and sprayed bullets on those who failed to recite Quran verses, killing at least 28 people, authorities said.
The bus, which had 60 people aboard, was heading from Mandera to the capital of Nairobi.
The group says the latest attacks are a response to the police raid on multiple mosques in the port city of Mombasa after explosives were found in one.
“Our Mujhahideen forces are always ready to launch frequent deadly cross-border attacks against Kenya as a revenge,” group spokesman Sheikh Ali Dheere said in a statement read on a pro-Al-Shabaab radio station in Somalia.