The US and Russia have been asked to do more to deal with the issue of child porn on the Net. Figures from the UK's Internet Watch Foundation indicate that 40 per cent of the online child abuse content it investigates is traced to the US, and 28 per cent back to Russia. By comparison, the UK makes up about 0.4 per cent.

"The Governments of the USA and Russia need to up their game and stem the tide of child pornography leaving their virtual shores because it is putting children across the world at risk," John Carr, new technology adviser for kids charity NCH, said.