Yemenis are the single largest national group at the military detention facility and while 64 Yemenis are currently at the prison, 39 of them have been approved for release.
It was not clear when the recording was made but references to Russian aggression suggest it was made after Russia, an ally of Syrian President Bashar Assad, launched air raids against opposition groups and Islamic State in Syria on Sept. 30.
Attacks on secular writers and their publishers threaten to stifle free speech in the South Asian nation.
It was not immediately clear who carried out the airstrike killing the commander and two other fighters.
Russia began bombing the headquarters of Jabhat al Nusra in Syria's largest city Thursday night, marking the launch of a regime offensive to drive out the rebels.
Ten other suspects were sentenced to death, and 20 to life in prison.
The al Qaeda Syrian affiliate said the Syrian regime was close to collapse, and called on supporters to step up attacks on territory held by the government.
A recording of Nusra Front leader Abu Mohammed al-Jolani calls for the death of Russian people and soldiers in Syria.
Families of 9/11 victims have been trying to seek damage claims for years, and their attorneys said they plan to appeal Tuesday's ruling.
After days of denials, Pentagon officials admitted that Syrian rebels trained by the U.S. had swapped their weapons for safe passage through an al Qaeda-linked group's territory.
A drone attack killed four men suspected of belonging to al Qaeda in northern Yemen on Saturday, tribal sources said, as a U.S. campaign against the militants goes on amid a wider civil war in the country.
Sept. 11, 2001, was a day of confusion, loss, fear, terror and grief. It also was a day that brought Americans closer.
"We don't recognize this caliphate," Ayman al-Zawahri said of the Islamic State group, before adding he would cooperate with them.
“The U.S. Diplomatic Mission to South Africa has received information that extremists may be targeting U.S. interests," the embassy said Tuesday.
The "Burraq" drone attacked a suspected militant hideout in the Shawal Valley, a militant stronghold on the border with Afghanistan.
Islam in the country that is second-most-populated by Muslims has long been considered moderate and at odds with the radical interpretation of the religion.
Ghost Security previously claimed it helped take down 59,000 social media accounts affiliated with the Islamic State.
Estimates of al-Shabab's size have ranged from 200 to 9,000.
A report suggested that Turkey alerted an al Qaeda branch called the Nusra Front to U.S.-trained Syrians entering the country in late July.
The hostage, who has not yet been identified, is believed to have been seized by al Qaeda in 2014 and was freed by forces of the United Arab Emirates.
The Pakistani military says it has entered the late stages of a campaign to drive Taliban militants away from the Afghan border.
Al Qaeda leader Ayman al-Zawahiri pledges allegiance to the Afghan Taliban.
