The commander general of Turkey's second army, one of the country's most senior military officials, has been arrested, according to the Anadolu news agency.

General Adem Huduti is the most senior officer to be detained so far in the wake of the attempted coup.

Lieutenant General Erdal Ozturk, the commander of the Third Army, was also arrested.

Another senior figure arrested was Alparslan Altan, a member of the constitutional court and the most senior judicial figure so far, according to broadcaster CNN Turk.