LONDON: Swedish Chief Prosecutor Ingrid Isgren arrived at Ecuador's London embassy on Monday to question Julian Assange, the founder of WikiLeaks, in connection with a rape investigation, a Reuters photographer said.

The interview, which will be led by an Ecuadorian prosecutor, could end a four-year deadlock since Assange took refuge in the embassy.

Swedish authorities want to question Assange over allegations that he committed rape in 2010. Assange denies the allegations.

The Swedish Prosecution Authority said last week that Ecuador had granted a Swedish request for assistance in criminal matters.