Trump says Baghdadi's top replacement also killed

US President Donald Trump said on Tuesday the person likely to be first in line to replace Islamic State's slain leader Abu Bakr al-Baghdadi has also been "terminated."

"Just confirmed that Abu Bakr al-Baghdadi's number one replacement has been terminated by American troops. Most likely would have taken the top spot - Now he is also Dead!" Trump tweeted.

Trump did not identify the person or give more detail on how he was killed.

A picture taken on October 28, 2019, shows Syrian locals checking a destroyed truck at the spot where Abu Hassan al-Muhajir, the Islamic State (IS) group's spokesman was reportedly killed in a raid in the northern Syrian village of Ayn al-Bayda near Jarablus. [Photo: AFP/Aaref Watad]

A top Kurdish official said Baghdadi's spokesman and right hand man, Abu Hassan al-Muhajir, was killed Sunday in a separate raid in the village of Ain Al-Baydah.

It was unclear if that was the person Trump was referring to in his tweet.

Mazloum Abdi, commander of the Kurdish-led SDF, had said on Twitter that al-Muhajir was targeted in what he described as a "coordinated operation between SDF intelligence and the US army."

That raid was carried out a day after US commandos stormed Baghdadi's hideout in northwestern Syria.

The Islamic State founder detonated a suicide vest, killing himself and three children, as he was being chased into a dead end tunnel, according to the US account.

A Kurdish official on Monday said the SDF provided crucial intelligence from a source who infiltrated Baghdadi's house, bringing out underwear that provided positive DNA identification.