They have made Euro 2016 headlines on the pitch - and off it ...

While Iceland shocked England to reach the quarter-finals, the passionate fans have caught the eye - and the ear - with their chilling rumble.

SOUNDBITE: (Icelandic) Styrmir Gislason, member of the Iceland supporters' group, 'The Twelve':

"Originally, I think this comes from Lech Poznan in the Polish handball league. From there, I think this originates. Motherwell (in the Scottish Premiership) have also been using this, though in a different form than we have been doing this."

SOUNDBITE: (Icelandic) Styrmir Gislason, member of the Iceland supporters' group, 'The Twelve':

"Our great friends in the 'Silver Spoon' (supporters group) brought this to us, but they have done this with a different appearance to ours. They have had singing after we cut out."

SOUNDBITE: (Icelandic) Styrmir Gislason, member of the Iceland supporters' group, 'The Twelve':

"It really is as great a power in the silence as the applause."

SOUNDBITE: (Icelandic) Styrmir Gislason, member of the Iceland supporters' group, 'The Twelve':

"And when we are tired, the others take over. There are thousands in the Twelve today."

SOUNDBITE: (Icelandic) Styrmir Gislason, member of the Iceland supporters' group, 'The Twelve':

"The story in Europe has become like this is some ancient Viking scream. We feel like it is even though it isn't. However, it's certainly a funny story."