President Donald Trump announced Friday night that U.S. and Nigerian forces had killed a senior leader of the Islamic State group in a joint military operation.

Trump identified the target as Abu-Bilal al-Minuki, whom he described as the "second in command" of ISIS globally. The president made the announcement on his Truth Social platform, calling the operation "meticulously planned and very complex."

"Tonight, at my direction, brave American forces and the Armed Forces of Nigeria flawlessly executed a meticulously planned and very complex mission to eliminate the most active terrorist in the world from the battlefield," Trump stated in his announcement.

The operation took place Friday night, according to Trump's statement. He characterized al-Minuki as "the most active terrorist in the world" but did not provide additional details about the mission's location or methodology.

The joint operation represents continued cooperation between U.S. and Nigerian forces in counterterrorism efforts in West Africa, where ISIS-affiliated groups have maintained a presence. No additional details about casualties or the specific circumstances of the operation were immediately available.