Daesh terrorist group claimed the responsibility for carrying out the truck attack occurred on Monday in Berlin, The Local quoted a news agency linked to the jihadists as saying on Tuesday.
"A soldier of the Islamic State (Daesh) carried out the Berlin operation in response to appeals to target citizens of coalition countries," the Daesh-linked Amaq news agency said in a statement posted online.
Earlier, a large truck drove into a crowded Christmas market in west Berlin at around 8.30pm on Monday evening. Twelve people have been confirmed dead, and 48 have been injured. Over a dozen are in a critical condition.