Fate of abducted Christians unclear as fierce fighting continues in northeastern Syria

In this image posted on a militant social media account by the Al-Baraka division of the Islamic State group on Tuesday, Feb. 24, 2015, a militant fighter aims a sniper rifle during during fighting in Tal Tamr, Hassakeh province, Syria. Fierce fighting between Kurdish and Christian militiamen and Islamic State militants is continuing on Wednesday, Feb. 25 in northeastern Syria where the extremist group recently abducted at least 70 Christians. (AP Photo via militant social media account) (The Associated Press)

In this image posted on a militant social media account by the Al-Baraka division of the Islamic State group on Tuesday, Feb. 24, 2015, militants take a break during fighting in Tal Tamr, Hassakeh province, Syria. Fierce fighting between Kurdish and Christian militiamen and Islamic State militants is continuing on Wednesday, Feb. 25 in northeastern Syria where the extremist group recently abducted at least 70 Christians. (AP Photo via militant social media account) (The Associated Press)

In this image posted on a militant social media account by the Al-Baraka division of the Islamic State group on Tuesday, Feb. 24, 2015, a fighter fires a heavy weapon mounted on the back of a pickup truck during fighting in Tal Tamr, Hassakeh province, Syria. Fierce fighting between Kurdish and Christian militiamen and Islamic State militants is continuing on Wednesday, Feb. 25 in northeastern Syria where the extremist group recently abducted at least 70 Christians. (AP Photo via militant social media account) (The Associated Press)