David Cameron has pledged to promote "good, clean, wi-fi" in public spaces.

It follows a campaign by a number of children's charities to get sites with adult content restricted in public areas with wi-fi internet access.

Mr Cameron told the Telegraph he wanted people to "have confidence in public wi-fi systems so that they are not going to see things they shouldn't".

The Children's Charities Coalition on Internet Safety welcomed the comments and said any deal was "long overdue".

Last year a cross-party parliamentary inquiry into how safe children are online concluded the government and internet service providers needed to do more to protect children from online pornography.

Since then government officials have been in discussion with wi-fi providers about filtering adult content by default on the services they provide directly to the public.

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