Meanwhile, the top commanders of the Turkish military gathered Tuesday.

In a statement they said the detentions constituted a "serious situation."

The high-profile case, generally known as the Egenekon investigation, has drawn international attention.

It has eliciting statements of concern from the European Union and the United States.

The wiretap evidence and discovery of alleged military plans, drafted in 2003 to overthrow the government, led to the detention of about 50 commanders Monday.

It is the AK Party government´s highest-profile crackdown ever on the military, which has ousted four governments since 1960.

A court in Istanbul ordered that four admirals, an Army general and two staff colonels be jailed.
 
It released six other officers Wednesday, but it was not clear whether they were freed pending trial.

Prosecutors are still questioning dozens of other high-ranking officers, including former chiefs of the Navy, Air Force and the Special Force

Those arrested include a two top Navy Admirals, one retired Army General, one two retired Navy Admirals.