A 17-year-old Afghan refugee wielding an axe and a knife shouted 'Allahu Akbar' before attacked passengers on a train in Germany

18 people have been injured after a teenager armed with an axe went on a bloody rampage after storming a train in Germany. Armed police swarmed the area soon after receiving reports that a man hacked at passengers on board a train close to Wurzburg in southern Germany. 

Police have confirmed that 18 people have been injured in the horrifying attack - which began in a train this evening. Four are understood to be seriously injured.

A 17-year-old Afghan refugee believed to be behind the attack was shot dead by police as he reportedly charged at them following the incident at Würzburg-Heidingsfeld station.

The boy is reported to have shouted "Allahu Akbar" before the attack.

We will bring you the latest updates as we get them

Islamic State terrorists have claimed responsibility for the attack last night.

The claim was made by the Amaq news agency.

A hand-painted ISIS flag has since been found in the bedroom of the attacker by police.

 A 17-year-old Afghan refugee wielding an axe and a knife shouted 'Allahu Akbar' before attacked passengers on a train in Germany