A lawyer for WikiLeaks founder Julian Assange said on Monday he and his client were in the process of arranging to meet British police.

A screen shot of a web browser displaying the WikiLeaks website with a picture of its founder Julian Assange in Bern Dec 4, 2010. WikiLeaks has moved its website address to the Swiss http://wikileaks.ch on Friday after two US Internet providers ditched it and Paris tried to ban French servers from hosting its database of leaked information.

Assange, 39, is wanted in Sweden for questioning about allegations of rape, sexual molestation and unlawful coercion, and an arrest warrant was received by London's Metropolitan Police earlier on Monday, a police source said.

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The Australian, whose WikiLeaks website is at the centre of a row over the release of secret US diplomatic cables, has denied the allegations.

"Late this afternoon after close of business I got a call from the police who said that they had received an extradition request from Sweden," London lawyer Mark Stephens told BBC television.

"Their request is to interview Julian Assange. He's not been charged with anything.

"We are in the process of making arrangements to meet with the police by consent in order to facilitate the taking of that question and answer that is needed."

He said the interview will happen in the "foreseeable future" but could not give an exact timescale.

Sweden's prosecution authority said it had given British police all the information they requested, after a series of apparent legal hitches.