ISTANBUL (REUTERS) - Turkey detained the commander of the Third Army Corps, General Erdal Ozturk, and he will face charges of treason after an attempted coup, according to an official and media reports.

An official said Ozturk was involved in the coup plot.

Television channels described him as the head of the Third Army Corps, which is based in Istanbul.

Earlier, the commander of the Second Army, General Adem Huduti, was also detained, Anadolu news agency reported.

The Second Army, based in Malatya, protects Turkey's borders with Syria, Iraq and Iran.

Later reports said Turkey had ordered the detention of 2,745 judges and prosecutors.

The move came as the government cracks down on suspected followers of US-based cleric Fethullah Gulen.

President Tayyip Erdogan has said Gulen's followers were behind the coup on Friday night that attempted to topple him.

Erdogan has said the cleric, who lives in self-imposed exile in the United States, is trying to build a "parallel structure"in the judiciary and army to try to overthrow the state, which Gulen denies.