Ecuador’s President Lenin Moreno has terminated the credentials of his UK ambassador, who has been at the center of negotiating the fate of WikiLeaks co-founder Julian Assange, as concerns mount over the whistleblower's safety.

The decree, with which Moreno effectively sacked Ecuador’s London ambassador Abad Ortiz, was published by WikiLeaks on Wednesday. The document does not offer any explanation as to why Ortiz, who had been his country’s ambassador to the UK since 2015, is now being permanently recalled. Nor does it name a successor for the outgoing diplomat. The decree is effective immediately.

WikiLeaks tweeted that Abad, appointed to the office under President Rafael Correa, was the last diplomat the long-term self-exiled editor knew in the embassy. “All diplomats known to Assange have now been transferred away from the embassy,” the whistleblowing site claimed.

READ MORE: Ecuador to hand over Assange to UK ‘in coming weeks or days,’ own sources tell RT's editor-in chief

This new and sudden twist in the Assange saga has been met with concern by his supporters, with some suggesting that Moreno is doing Washington's bidding by removing people who might have stood by Assange and opposed his potential handover to the British police – which is expected to bring about a swift extradition to the US. The dismissal has been called “a silent pro-US coup.”

Meanwhile in #Ecuador@Lenin Moreno has replaced judges and election officials. Anyone still loyal to former President @MashiRafael Correa must be purged. This is a silent pro-US coup. — J. (@jaraparilla) November 22, 2018

One user argued that sending off diplomats Assange might have bonded with and surrounding him with complete strangers is a form of “psychological torture.”

This is psychological torture!!!julian needs people whom he can trust. — Free Press! Free Julian Assange 🔊 (@FreeWikiPress) November 22, 2018

Carlos Abad and others replaced with puppets who will "follow orders" from the puppet regime of Lenin Moreno (receiving instructions from Uncle Sam) — Dr. Roy Schestowitz (罗伊) (@schestowitz) November 22, 2018

Assange’s prolonged stay in Ecuador’s London embassy, where he has enjoyed protection from possible arrest and persecution in the US since 2012, has been hanging in the balance since the election of Moreno in 2017. Moreno, a former ally of Correa, has distanced himself from the anti-American policy of his predecessor and sought to reboot relations with the US. Ecuador is looking for US support in getting $3.9bn in international loans, and there have been reports that Washington's assistance would be conditional to Ecuador’s handling of the Assange case.

Lenin was bought like Judas with 1.3 billion loan — Raking Citizen Halo 🇫🇮🐦⏳ (@haloefekti) November 22, 2018

There have also been reports of intense negotiations between senior UK and Ecuadorian officials over the prospects of Assange's eviction. The Times reported in summer that the talks were held at Foreign Office level. While Moreno has described Assange as “more than a nuisance” and “an inherited problem,” he repeatedly stated that Ecuador would not withdraw its protection unless the whistleblower breaches a set of stringent rules, which restrict his freedom of expression and visitation rights.

The rules, which Assange described as violating his fundamental rights and freedoms, were laid out in August, demanding he stays away from discussing politics and pays for his own medical and other expenses. Late October, an Ecuadorian court rejected Assange’s appeal to revise the “protocol.”

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