Hundreds of Muslims in Sri Lanka have protested against an anti-Islam film produced in the United States, calling for its creators to be hanged.

About 300 protesters marched in Sri Lanka's capital, Colombo, on Wednesday, carrying signs and banners that read, "Ban anti-Islamic film all over the world. US should apologise to Muslims."

They chanted, "Hang the producer and director of the film."

Protesters also spit on and walked on US and Israeli flags during the demonstration, which was organised by an Islamic group called Sri Lanka Thaweed Jamath.

Abdul Razeek, a spokesman for the group, demanded the US ban the film and said the protests would continue until the film is completely removed from YouTube.

He said protesters were "ready to sacrifice our lives for this."