An audio statement on the group’s al-Bayan radio station said that “two soldiers of the caliphate” carried out Sunday’s attack and promised to deliver more in the future.
The statement did not provide details and it was unclear whether the group was opportunistically claiming the attack as its own. It is the first time that Isis, which frequently calls for attacks against the west, has claimed responsibility for one in the United States.
Two suspects in Sunday’s attack in the Dallas suburb of Garland were shot dead after opening fire at a security guard outside the centre.
It was unclear whether the group, which has captured large swaths of territory in Syria and Iraq, had an actual hand in the operation, or whether the two suspects had pledged allegiance to the group and then carried out the attack on their own.
The suspects have been identified by officials as Elton Simpson and Nadir Soofi and government sources says they were roommates.
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