(NBC NEWS) BERLIN — Chancellor Angela Merkel pledged Thursday to do “everything humanly possible” to ensure security in Germany following a string of attacks — including two carried out by asylum-seekers and claimed by ISIS.

Merkel promised to do everything to find out who was behind the “barbaric acts” and bring them to justice. Germany owes that not just to victims and relatives and other Germans, but also to other refugees, she said.

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