The pledge to IS came in an Arabic audio message with English subtitles alleged to have come from Boko Haram leader Abubakar Shekau and posted Saturday on Twitter, according to the SITE Intelligence monitoring service.
“We announce our allegiance to the Caliph of the Muslims … and will hear and obey in times of difficulty and prosperity, in hardship and ease, and to endure being discriminated against, and not to dispute about rule with those in power, except in case of evident infidelity regarding that which there is a proof from Allah,” said the message. IS leader Abu Bakr al-Baghdadi has declared himself the caliph.
The message was posted on Twitter, hours after Boko Haram was blamed for four suicide bomb attacks in northeastern Nigeria that killed at least 54 people and wounded more than 140 people.
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