Ecuador's president has said Julian Assange will be questioned at the embassy where he has been holed up for more than three years over allegations of sex assault.

In a significant breakthrough in the case, Ecuador has struck a deal with Swedish prosecutors that will see the WikiLeaks founder face questions over allegations he sexually assaulted two women, without having to leave the building.

President Rafael Correa said the Swedish authorities will submit questions to Ecuadorian officials, who will then quiz Mr Assange about them.

Mr Assange has been living in the embassy in Knightsbridge, west London, for more than three years and has been granted political asylum by the Ecuador government.

He is wanted for questioning in Sweden over sex assault allegations against two women, which he has always denied.

Whistleblowing controversies of the last decade Show all 12 1 /12 Whistleblowing controversies of the last decade Whistleblowing controversies of the last decade Edward Snowden NSA leak Articles in The Guardian revealed that the US and the UK spied on foreign leaders and diplomats at the 2009 G20 summit. Reuters Whistleblowing controversies of the last decade WikiLeaks' US diplomatic cables leak In 2009, former US soldier Chelsea Manning, downloaded hundreds of thousands of classified US Government documents, and passed them on to Jullian Assange's whistleblowing website WikiLeaks. Among the documents were 250,000 State Department diplomatic cables. One disclosed the close relationship between Russian President Vladimir Putin and then-Italian Prime Minister Silvio Berlusconi, the Guardian reported. Allegations included "lavish gifts", lucrative energy contracts and the use by Berlusconi of a "shadowy" Russian-speaking Italiango-between. Getty Images Whistleblowing controversies of the last decade WikiLeaks' US diplomatic cables leak WikiLeaks' US diplomatic cables leak: In a revelation which bruised the UK's 'special relationship' with the US, WikiLeaks published conversations by US commanders criticising Britain's military operations in Afghanistan. Getty Images Whistleblowing controversies of the last decade WikiLeaks' US diplomatic cables leak WikiLeaks' US diplomatic cables leak: One document disclosed startling levels of corruption in Afghanistan, including an incident involving the then vice-president, Ahmad Zia Massoud, who was reportedly stopped and questioned in Dubai when he flew into the emirate with $52m in cash. Getty Images Whistleblowing controversies of the last decade WikiLeaks' US diplomatic cables leak Another cable documented fears in Washington over Pakistan's nuclear weapons programme, in a volatile country with a strategic position in the Middle East. PA Whistleblowing controversies of the last decade WikiLeaks' US diplomatic cables leak Day four of the gradual drip of leaks exposed allegations that Russia and its intelligence agencies are using mafia bosses to carry out criminal operations, with one cable reporting that the relationship is so close that the country has become a "virtual mafia state". Getty Images Whistleblowing controversies of the last decade Edward Snowden NSA leak In 2013, The Guardian published classified US National Security Agency (NSA) documents, from a then anonymous whistleblower. Four days later he was exposed as former NSA contractor Edward Snowden. A month after the initial leak, the New York Times allegeded that the NSA received emails, video clips, photos, voice and video calls, social networking details, logins and other data held by a range of US internet firms. Whistleblowing controversies of the last decade Edward Snowden NSA leak Since Snowden revealed that the US had eavesdropped on German Chancellor Angela Merkel's phone, German-US relations have been strained. In May 2014, Mrs Merkel said still had significant differences with the United States over surveillance practices and that it was too soon to return to “business as usual," according to the New York Times. Getty Images Whistleblowing controversies of the last decade Edward Snowden NSA leak On 7 June, The Guardian published the Presidential Policy Directive 20, whcih included a list of potential targets for cyber-attacks by the US Government. Rex Features Whistleblowing controversies of the last decade Samy Kamkar iPhone and Android exposé In April 2014, hacker and researcher Samy Kamkar revealed that Android phones collect user location data every few seconds. Files are then transited to Google several times an hour. Getty Images Whistleblowing controversies of the last decade Samy Kamkar iPhone and Android exposé It is believed Apple and Google are using the data to better target adverts to smartphone users, according to The Guardian. Getty Images Whistleblowing controversies of the last decade Samy Kamkar iPhone and Android exposé The two companies have since justified the collection of data. In a letter to the US congress Apple confirmed it collected the data and said that, in order to be useful, "the databases [of tower and network locations] must be updated continuously". A Google spokesman told the Guardian Android phones explicitly asked to collect anonymous location data when users turned them on. Getty Images

He fears being transported to the United States to be quizzed over the activities of WikiLeaks if he goes to Sweden.