Sesame Street's YouTube channel has been taken offline after hackers uploaded several pornographic videos.

The changes appeared to have been made by someone called Mredxwx, although a member who uses that name denied involvement.

A message posted alongside the adult videos stated: "Who doesn't like porn kids?"

It is understood that the Sesame Street account was taken offline within 20 minutes of the problem being spotted.

In a statement, Google - which owns YouTube - said: "YouTube's Community Guidelines prohibit graphic content. As always, we remove inappropriate material as soon as we are made aware of it."

The American children's show has more than 140,000 subscribers and its videos have been watched almost half a billion times.

Full story: BBC News