The chairman of the FA has condemned the behaviour of some England supporters in Dortmund last night.
Greg Clarke described the behaviour as "inappropriate, disrespectful and disappointing", after fans were heard singing offensive chants about the Second World War. One of the chants glorifies the role of the RAF in bombing German cities during the conflict.
England fans were also heard booing the German national anthem, despite the fact that the English anthem had been respectfully observed by German supporters.
The Football Supporters' Federation has also condemned the chanting, saying: "Unfortunately, little of the wit and imagination that goes into our club football songs is reflected at England games.
"England's travelling support is made of people of all ages from a range of clubs, many of whom have worked hard in recent years to improve our standing abroad and have expressed concern to us about these chants.
"We don't want to regress to a situation where that reputation is tarnished by the actions of a minority."
England supporters have been involved in a series of violent incidents over the past 30 years, and are regularly criticised for their chanting when supporting the team overseas.
However the most recent high-profile clash, which came before and after England's match with Russia in Euro 2016, was widely acknowledged to have been provoked by Russian aggression rather than the behaviour of England supporters.