Clashes between extremist groups kill scores in Syria

It's raised fears of more deadly violence between groups battling President Bashar Assad's troops.

Clashes between two extremist factions in north-western Syria have left dozens of fighters dead on both sides and raised fears of more deadly violence between groups battling President Bashar Assad's troops.

The fighting between the al Qaida-led coalition known as the Levant Liberation Committee and the extremist Jund al-Aqsa group left nearly 70 dead in some of the worst clashes between insurgents in years, an opposition monitoring group and a rebel commander said.