ISIS claims it inspired truck assault at Berlin market

German authorities released a man and intensified their manhunt for the person who plowed a tractor-trailer truck into a crowd at a Berlin Christmas market, even as ISIS claimed Tuesday that it inspired the attack.

Police said they didn't have enough evidence to hold a man they'd earlier described as a suspect in the Monday night truck assault that left 12 people dead and 48 injured.

The ISIS-affiliated Amaq news agency released a statement saying the attack was carried out by "a soldier of the Islamic State" in response to calls by the group's leadership to target citizens of international coalition countries.

CNN terrorism analyst Paul Cruickshank said ISIS often uses this terminology to refer to attacks by alleged sympathizers in the West.