Ankara: Turkey declared Egypt’s ambassador “persona non grata” and downgraded diplomatic relations to the level of charge d’affaires on Saturday, in a tit-for-tat move after Cairo expelled its envoy, the foreign ministry said in a statement.

The ministry said it summoned Egypt’s charge d’affairs to inform him that “our relations were downgraded to the level of charge d’affaires and Egyptian Ambassador Abdul Rahman Salah Al Deen ... is declared persona non grata in line with the reciprocity principle that forms the basis of international relations.”

Both Turkey and Egypt had recalled their respective envoys in August, but while the Turkish ambassador eventually returned to Cairo in September, Egyptian Abdul Rahman Salah Al Deen stayed home.

Cairo’s expulsion of ambassador Hussain Avni Botsali came in response to remarks by Turkish Prime Minister Recep Tayyip Erdogan on Thursday in which he renewed his criticism of the coup and of Egypt’s continuing crackdown on Mursi’s Islamist supporters.

Egypt had decided to “expel the Turkish ambassador and downgrade our ties to the level of charge d’affaires... declare the Turkish ambassador persona non grata and... not send our ambassador to Turkey,” foreign ministry spokesman Badr Abdul Atti told AFP.

A ministry statement accused Ankara of “supporting ... organisations seeking to create instability in the country,” in a clear reference to the Muslim Brotherhood movement to which Mursi belonged.

It said Ankara was also “trying to influence the international community against Egyptian interests”.

Abdul Atti said Erdogan’s latest comments, made in Ankara on Thursday before heading for talks in Russia, were “provocative” and amounted to “interference in Egypt’s internal affairs.”

The Turkish premier had said: “I applaud Mr Mursi’s stance against the judiciary. I respect him. I have no respect for those who put him on trial.”

Mursi is being tried on charges of inciting the deaths of protesters during his turbulent one-year rule but has told the court that he remains the country’s legitimate president and does not recognise its authority.

Erdogan irritated Egypt’s new authorities straight after Mursi’s July 3 ouster by describing the president’s overthrow as a “coup”.

He then caused further anger with repeated calls for Mursi’s release and for free and fair elections.

Relations deteriorated further in August when the Turkish premier condemned a deadly security force action against two Cairo protest camps set up by Morsi’s supporters.

The following day, Cairo and Ankara both announced they were recalling their ambassadors for consultations.

Ankara said on Saturday it would reciprocate Cairo’s latest move.

“We will take steps in reciprocity after comprehensive consultations with the Turkish ambassador,” foreign ministry spokesman Levent Gumrukcu told AFP.

But Turkish President Abdullah Gul sought to ease the spat between two of the region’s most populous nations.

“This situation between Turkey and Egypt is temporary and conjectural,” Gul said in televised remarks.

“Turkey and Egypt are just like two halves of an apple on the two sides of the Mediterranean. We’re very sad about what’s going on in Egypt. I hope relations will be back on track.”

The expelled ambassador too sought to calm the row.

“Turkish and Egyptian people are brothers. I’ll continue to pray for the good of Egypt,” Turkish media quoted Botsali as saying.

“It is of utmost importance for the region and the world that Egypt remains on the path of democracy,” he added.

Turkey’s Islamic-rooted Justice and Development Party (AKP) government had forged a close alliance with Morsi after he won Egypt’s first freely contested presidential election in June 2012.

But the Islamist president was ousted by the army just one year later following days of mass protests accusing him of partisanship towards the Brotherhood and failure to address the country’s economic woes.

His ouster triggered instant international condemnation, which intensified after the authorities began cracking down on Islamists, leading to more than 1,000 deaths and thousands more arrests.

Washington even suspended a chunk of its annual $1.5 billion military aid to its longtime ally.

In September, Egypt recalled its ambassador from Tunis following a call by Tunisian President Munsif Mazrouki for Mursi’s release.

The Egyptian envoy returned to Tunis on November 18.