A Turkish national flag is seen on Eyup sultan mosque on July 26, 2016 in Eyup district in Istanbul, following the failed military coup attempt of July 15. (AFP/Xinhua photo)

ANKARA, July 28 (Xinhua) -- Turkey's Foreign Ministry has dismissed 88 of its employees, including two ambassadors, in investigations following a failed coup attempt, Foreign Minister Mevlut Cavusoglu said Thursday.

The dismissals come as one of many throughout the process of cutting all ties to the so-called Fethullahist Terrorist Organization (FETO), local media quoted Cavusoglu as saying.

He was referring to Fethullah Gulen, a Muslim cleric Ankara accuses of being the mastermind behind the July 15 coup attempt, which left at least 290 people dead, including more than 100 "coup plotters."

Turkey has demanded that the United States, where Gulen resides, repatriate him.

Washington insists that Turkey provide "concrete evidence" directly implicating Gulen as a precondition to his extradition.

In a related development, two generals on Thursday submitted their resignations from the Turkish General Staff, the Dogan News Agency reported.

A total of 1,684 military personnel, including 149 generals and admirals, were discharged from the Turkish armed forces on Wednesday, local media reported.

Authorities say the discharged military personnel were members of or were indirectly related to FETO.

So far, 10,012 soldiers have been detained in the ongoing investigation.