The large number of people accused of being part of the plot to overthrow Erdogan has prompted international concern with world leaders warning Turkey to respect the "rule of law" and to not to use the coup as an excuse to get rid of any political opposition.
However the coup attempt highlighted popular support for the leader and for Turkey's democracy among a people who are fed up with political instability - there have been four coups of varying degrees since 1960.
On Friday, more than 200 people were killed as factions of the military tried to seize power in Turkish capital Ankara and major city Istanbul but the plot failed largely because of a lack of public support, organization and international backing.
Erdogan has called on Turks to show support for democracy - and, by default, his leadership and his AKP party - by taking to the streets to celebrate the coup's failure. Even though thousands have done so, bringing a carnival atmosphere to Turkish cities, analysts warn that the party could soon be over and Erdogan's regime could become increasingly authoritarian from now on.
Attila Yesilada, partner at analysis firm GlobalSource Partners in Istanbul, told CNBC on Tuesday that more arrests were likely and that these could exacerbate simmering tensions in Turkey between pro-Erdogan religious conservatives and secularists who fear that Turkey is drifting away from its founding, secular principles.
"This is just starting. In addition to the army, more than 8,000 people in the interior ministry have been sent to passive duty and are being detained as we speak," he said.
"More than 1,500 people in the ministry of finance, two members of the constitutional court and 200 members of other high courts- it is really unfeasible to imagine that evidence has been gathered about their contribution to the coup in such a short time so there is some amount of extra-judicial activity going on here, this is reminding me of a witch hunt and the justice ministry is promising the people that more with come," Yesilada said.
"I am afraid that this opportunity will be grasped by hard-liners in the AKP to eliminate the Kemalists (supporters of the secular principles implemented by 20th century Turkish leader Mustafa Kemal Ataturk) secularists and anybody they consider as enemies which would simply further increase rifts in society and have a chilling impact on the business climate."