Choreographer Akram Khan has said he is upset his Olympic opening ceremony tribute to victims of the 7 July London bombings was not aired in the US.

Khan said he felt "disheartened and disappointed" NBC cut the segment which featured him and 50 dancers perform to Abide With Me, sung by Emeli Sande.

Instead, NBC aired an interview with American Idol host Ryan Seacrest and US Olympic swimmer Michael Phelps.

NBC said it had had no indication the segment was a reference to the attacks.

"I am really sad that I couldn't show the work in America, and that really upsets me, because I don't think it's any less or more than any of the other pieces," Khan told the Associated Press.