Last week, a series of U.S. airstrikes killed the terrorist leader behind the attack on the joint American-Kenyan base in Manda Bay.

According to the U.S. Africa Command (AFRICOM), the senior al-Shabaab leader was killed inside Somalia, which borders Kenya from the north and provides a safe haven for the Jihadist organization. His wife, also an al-Shabaab member, was too killed during the targeted strikes. AFRICOM hasn’t released their names.

Army General Stephen Townsend said in a press statement that “since Jan. 5, U.S. Africa Command and our partners have pursued those responsible for the attack on U.S. and Kenyan forces at Manda Bay. This strike demonstrates that we will continue to relentlessly pursue those responsible for Manda Bay and those wishing to do harm to Americans and our African partners.”

Aside from being the mastermind behind the Manda Bay attack, the al-Shabaab leader was responsible for planning and directing the group’s activities on the Somali-Kenyan border region.