Islamic State has claimed responsibility for the lorry attack in Berlin which killed 12 people last night.

Earlier, the man arrested over last night's lorry attack in Berlin has been released, with investigators saying there's no evidence against him.

The Pakistani national was being held on suspicion of ploughing into crowds at a market, killing 12 people.

But media reports suggest police feared they had the 'wrong man'.

Sky News reporter Mark White in the German capital says that's worrying for authorities: