Turkey's state-run agency says Tahsin Sahinkaya, the last surviving member of a junta that led Turkey's 1980 military coup, has died. He was 90.

Anadolu says former air force commander Sahinkaya died at a military hospital in Istanbul on Thursday. The cause of death was not immediately announced.

He was one of five members of the military clique that grabbed power on Sept. 12, 1980. The coup ended years of violence and street clashes but also unleashed a wave of arrests, torture and extrajudicial killings.

In 2014, Sahinkaya was convicted of crimes against the state and sentenced to life imprisonment along with the coup's leader, Kenan Evren. Sahinkaya was free on medical grounds and was appealing his conviction.

Evren, who was president until 1989, died in May, aged 97.