Global alarm is mounting over the retaliatory action since Friday's failed putsch, which has already seen a massive crackdown in the military, police and judiciary and thousands detained including top generals.
Prime Minister Binali Yildirim said Turkey had sent dossiers to the United States to demand for the extradition of reclusive preacher Fethullah Gulen, who has emerged as President Recep Tayyip Erdogan's greatest foe.
Today's action largely targeted supporters of Gulen, who lives in Pennsylvania but retains vast interests in Turkey ranging from media to finance to schools and wields influence in various apparatus including the judiciary and police.
The government suspended 15,200 state education employees allegedly linked to the "Fethullah Terrorist Organisation" -- its name for Gulen's network -- and demanded the resignation of almost 1,600 deans from private and state universities.
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The authorities also cancelled licences for radio and television stations said to be linked to the so-called Gulenists.
The state-run Anadolu news agency said 24 media outlets were hit, while 34 journalists were stripped of their press cards.
Already, almost 9,000 people including police, judges and government officials had been sacked in the days following Friday's coup.
Yildirim nevertheless warned Turks against exacting "revenge" on backers of the attempted overthrow, after disturbing pictures emerged of rough treatment meted out to suspects.
Erdogan spokesman Ibrahim Kalin defended the mass detentions and called on Washington to cooperate in handing over Gulen.
Ankara has long accused Gulen, once a close Erdogan ally sharing his Islamo-conservative views, of operating a parallel state in Turkey with the aim of toppling the government.
Gulen dismissed the allegations he was involved in what he called "treason, a betrayal of the Turkish nation," and said he was not concerned by the extradition move.
Turkey's anxious Western allies have told Ankara to abide by the rule of law amid fears about a worsening state of democracy and human rights in the strategic NATO nation.
UN rights chief Zeid Ra'ad Al Hussein urged a fair trial for the suspects and voiced "serious alarm" over the purges.