"The coup attempt has been foiled," General Umit Dundar said in televised appearance, adding that 90 people - 41 of them police and 47 are civilians - "fell martrys".
He also said many commanders were taken to "unknown locations". President Recep Tayyip Erdogan meanwhile used
Twitter to call on people to remain in the streets, warning against a new flare-up.
Turkey's state-run Anadolu reported the number of dead in the attempted coup to some 90 with 1 154 wounded.
Authorities have issued an alarm to border gates and airports upon being informed that prominent members of the Gulen Movement, including journalists, might flee the country following the overnight attempted military coup.
The report says authorities discovered the plans after lists were found detailing the commanders and their deputies to be put in charge during the period of martial law if the coup had succeeded.