US knows Baghdadi's successors: President Trump

The US knows the successors of deceased ISIS leader Abu Bakr al-Baghdadi and is already tracking them, President Donald Trump said on Sunday.

Trump announced on Sunday that Baghdadi blew himself in his suicide vest as he was chased to the dead end of a tunnel by the US service dogs during an American raid in northwest Syria.

"We know the successors and we've already got them in our sites and we'll tell you that right now. But we know the successors," he told reporters after his major announcement.

Responding to questions, Trump said early this year the US troops had killed Hamza bin Laden, son and successor of deceased al-Qaeda leader Osama bin laden.

"Hamza bin Laden was a big thing. But this is the biggest ever. Osama bin Laden was very big, but Osama bin Laden became big with the world trade center. This is a man who built a whole, as he would like to call it, a country, a caliphate. And was trying to do it again," Trump said.

"I had not heard too much about his health. I've heard .