Image copyright EPA Turkey has arrested 6,000 people after a failed coup, with President Erdogan vowing to purge state bodies of the "virus" that caused the revolt.
Mr Erdogan's top military aide Col Ali Yazici is among those now in custody.
The number of those killed in the weekend violence had risen to 290, the foreign ministry said. More than 100 of them had been involved in the coup.
Security forces are reported to have met resistance from some coup-plotters who were being arrested.
Warning shots were fired at Istanbul's second largest airport, and also at a military base in central Konya province, unnamed officials said.
"We will continue to cleanse the virus from all state institutions, because this virus has spread. Unfortunately like a cancer, this virus has enveloped the state," Recep Tayyip Erdogan told mourners at at a funeral in Istanbul for victims of the coup.
The president repeated an accusation that US-based Turkish cleric Fethullah Gulen was behind the plot. Mr Gulen strongly denies any involvement.
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Drama not quite over yet - BBC's Selin Gerit in Istanbul
Image copyright EPAEmotions are running high as funerals for those killed during the coup plot are held. President Erdogan was among those mourning in Istanbul for the brother of one of his closest advisers.
"My glorious nation has given the best response to the coup plotters," Mr Erdogan said in a televised speech frequently interrupted by chants of "God is Great!" Whenever he made a reference to Fethullah Gulen, the roar of boos would come from the crowd.
Turkey has been through a dramatic 48 hours, on a scale even this country - with a turbulent past of three previous coups and a further two military interventions - had never seen before. And it is not totally over yet.
As more than 6,000 have been detained and the expectation that numbers could rise further, one Twitter user commented "this is an opportunity for the governing party to cleanse out all opposition to the presidential system".
Mr Erdogan's critics wonder if he could he make use of the latest events as leverage to push harder for a constitutional change that would further enhance his powers.
Among the latest arrests to be reported was the commander of Incirlik air base in the south used by US-led coalition jets for raids against the so-called Islamic State group in Iraq and Syria. Unnamed officials said Gen Bekir Ercan Van and 10 other soldiers had been detained for their role in the coup.
Also on Sunday, more than 50 senior soldiers were detained in the western province of Denizli, including the garrison commander.
Those arrested on Saturday were reported to include Gen Erdal Ozturk, commander of the Third Army; Gen Adem Huduti, commander of the Second Army; and Akin Ozturk, the former Chief of Air Staff.
One of Turkey's most senior judges, Alparslan Altan, has also been taken into custody.
Image copyright AFPPresident Erdogan has called on the US to extradite Fethullah Gulen, 75, who heads the popular Hizmet movement and is said to count military chiefs and mid-level bureaucrats among his followers.
Once allies, Mr Erdogan has long accused Mr Gulen and his supporters of plotting against him.
US Secretary of State John Kerry said of any extradition, that Turkey should "present us with any legitimate evidence that withstands scrutiny".
Mr Gulen has denied any involvement in the coup. He has been in self-imposed exile in Pennsylvania for the past 15 years, said: "I don't even know who my followers [in Turkey] are."
Mr Kerry strongly rebuked a Turkish minister who suggested Washington was behind the coup. He said "utterly false" insinuations were "harmful to our bilateral relations".
US President Barack Obama has joined other world leaders in calling for all parties in Turkey to "act within the rule of law".