The United Arab Emirates financed a high-profile coup attempt last year in Turkey and paid about three billion dollars to the putschists, a columnist in a Turkish daily has claimed.

Mehmet Acet, a columnist for Yeni Safak daily, said on Tuesday that Foreign Minister Mevlut Cavusoglu meant the United Arab Emirates when he recently hinted at a Muslim country that spent billions to topple the Turkish government in the coup in July 2016.

Cavusoglu said in recent remarks that a foreign country funneled money to the putschists while making efforts to topple President Recep Tayyip Erdogan.

“We know that a country provided $3 billion in financial support for the coup attempt in Turkey and exerted efforts to topple the government in illegal ways. On top of that, it is a Muslim country,” said the Turkish foreign minister, as quoted by Acet.

Acet elaborated on his claims in an interview to the Turkish media, saying sources in the Turkish Foreign Ministry had confirmed that the country behind the coup was indeed the United Arab Emirates.

“The minister did not name the country. However, sources from the foreign ministry have confirmed that it was the UAE,” Acet told Daily Sabah newspaper.

Other sources have also claimed that a media magnet close to the government in Abu Dhabi had indeed transferred money to Turkey weeks before the coup was carried out. They said the money had been funneled to elements loyal to Fethullah Gulen, a cleric based in the United States who is accused by Ankara of masterminding the coup attempt.

Right after the coup was declared over on July 16 last year, Turkey launched a massive crackdown to hunt the plotters. The widening action then led to more than 40,000 arrests. More than 100,000 people have also been discharged from their jobs.

Turkey has not directly accused a country of having a role in the coup, which killed over 250 people. However, Cavusoglu’s remarks come amid a widening diplomatic standoff in the Persian Gulf region. Turkey has been defending Qatar against allegations of terrorism by Saudi Arabia and the United Arab Emirates while it has repeatedly endorsed Qatar’s support for senior officials from the Muslim Brotherhood, a popular party outlawed in Egypt since three years ago under pressure from the United Arab Emirates and Saudi Arabia.

Ankara and Abu Dhabi are also at odds over the situation in Libya, where the two countries support different sides of the conflict.