A migrant gang left 12 people aged 13 to 42 injured after carrying out random attacks and hurling racist abuse in a German city, it has been reported.

Four teenagers - from Iran, Syria and Afghanistan - are said to have targeted passers-by in the Bavarian city of Amberg.

Eyewitnesses claim a man was pushed down a flight of stairs while a 17-year-old was left needing hospital treatment for a head injury.

Germany's Interior Minister Horst Seehofer said he was 'dismayed' by the events in Amberg adding: 'If asylum seekers commit violent crimes, they must leave our country.'

A migrant gang left 12 people aged 13 to 42 injured after carrying out random attacks and hurling racist abuse in a German city, it has been reported. Pictures have emerged showing three of four suspects arrested by police

Four teenagers - from Iran , Syria and Afghanistan - are said to have targeted passers-by in the Bavarian city of Amberg. Pictured: One of four suspects arrested by police

A migrant gang left 12 people aged 13 to 42 injured after carrying out random attacks and hurling racist abuse in the German city of Amberg (pictured), it has been reported

The violence broke out at about 6.30pm on Saturday at Amberg station.

A 13-year-old, named as Nimo M was kicked in the stomach before his 29-year-old friend, landscape gardener Marco S. was hit in the face.

In another incident, a 17-year-old girl was branded a 'hooker', Bild reports, before her companions were struck in the face when they tried to intervene.

One eyewitness said a man was pushed down a flight of stairs at the train station.

Another teenager described how racist abuse was hurled at a friend before three people in the group were chased and attacked.

A man who tried to help them was also beaten up, said the teenager, who needed hospital treatment for bruises and concussion.

Germany's Interior Minister Horst Seehofer (pictured) said he was 'dismayed' by the events in Amberg adding: 'If asylum seekers commit violent crimes, they must leave our country'

As the alleged attackers fled, they set upon two more passers-by. Police later arrested four suspects, and aged 17 to 19.

Interior Minister Seehofer told Bild: 'The events in Amberg have upset me a lot. These are violent excesses that we can not tolerate. If asylum seekers commit violent crimes, they must leave our country. If the existing laws are not enough, they must be changed.'

He said that a xenophobic attack in the town of Bottrop, in which a car was driven into a group of foreigners on New Year's Eve, needed to be pursued with the same 'determination and rigor'.