Baradar said he was surprised by the Taliban's triumph and that "it was never expected that we will have victory in Afghanistan."
An army spokesman says soldiers clashed with about 300 members of the group late on Wednesday.
This is a moment for robust and bold leadership on both sides of the Atlantic.
The attacks bear the hallmarks of Boko Haram, which has killed thousands and displaced 2.1 million people in Northeast Nigeria.
No one has claimed responsibility for the attacks, but a spokesman blames the jihadi movement.
The terrorist group uses the threat of chemical attack to frighten its enemies on the battlefield.
ISIS militants detonated explosives around one of the most important structures in the world, according to an eyewitness.
Ali Amin, 17, tweeted about 7,000 times from the apparently pro-ISIS account.
The terror group has captured five more villages in northern Aleppo, described as a 'major turning point' by analysts.
Yazidi groups have all but given up on the return of hostages.
U.S. officials have said they are willing to send military trainers to help Nigeria counter a six-year-old northern insurgency by the Boko Haram Islamist movement.
Suspicion is likely to fall on the militant Islamist group, which has attacked the city several times during a six-year insurgency.
Militants consider the shrines sacrilegious.
The Sunni tribes who are halting the terror group's advance are not properly armed.
This is the first time the Pentagon has acknowledged civilian casualties since it began an air campaign against Islamic State militants in Syria and Iraq.
"There's no doubt that in the Sunni areas, we're going to have to ramp up not just training, but also commitment," Obama said in an interview with The Atlantic.
Islamic State militants advanced in armored vehicles from Ramadi towards the base where the Shi'ite paramilitaries were massing for a counter-offensive.
Turkish foreign minister reveals Ankara has issued travel bans for 13,800 suspected militants
Dozens of militants arrived on the shores of Lake Chad, setting houses ablaze and attacking a police station.
France launched a search for the 26-year-old after her partner took hostages at a Jewish supermarket.