Baghdadi has kept a low profile, despite having declared himself the leader of a renewed Muslim caliphate, but last month released a defiant audio message urging his supporters to defend the northern Iraqi city of Mosul.
“If we get the opportunity, we certainly would take advantage of any opportunity to deliver him the justice he deserves,” he said.
“We’re doing everything we can. This is something we’re spending a lot of time on.”
In mid-December, the United States more than doubled the bounty on the shadowy IS leader’s head to $25 million.