WikiLeaks founder Julian Assange was said to be too ill to attend the latest court hearing in his extradition case.

Assange, 48, is wanted in the US to face 17 charges under the Espionage Act and conspiracy to commit computer intrusion after the publication of hundreds of thousands of classified documents in 2010 and 2011.

He is currently being held in London's maximum-security Belmarsh prison while the court system tries to reschedule his extradition hearing, which was postponed due to the coronavirus pandemic.

A brief hearing at Westminster Magistrates' Court this morning was barely audible over a telephone link available for journalists to listen in to proceedings.

A spokeswoman from Bridges for Media Freedom, a press freedom organisation which has been monitoring the hearings, said Assange's barrister, Edward Fitzgerald QC, told the court his client did not appear by video link because he was unwell.

The court has previously heard Assange has been given medical advice that using the prison facility could raise the risk of coronavirus infection.

His full extradition hearing is set to take place on 7 September, having originally been scheduled for 18 May, although a crown court has not yet been found to take the case.

A further administrative hearing is due to take place on 29 June.