ISIS video shows beheading of Free Syrian Army rebels

The Islamic State of Iraq and Syria (ISIS) group has released a new video allegedly showing Free Syrian Army rebels being executed by its militants.

The video released on Tuesday showed ISIS masked militants threatening more executions of “any Muslim even thinking about joining any US-backed group looking to over-throw the Assad regime.”

The 19-minute long propaganda video was released by a group calling themselves “Wilayat Furat in Iraq” (translated to the State of the Euphrates) who have pledged allegiance to ISIS.

The group said in the video that they captured the FSA fighters after battles near the Syrian border city of Al-Bukamal with Iraq.

US agencies are considering “diplomatic, military, intelligence and economic options” to deal with the crisis in Syria, an official said Tuesday, while stressing the need for a “political resolution.”

Top US security and foreign policy chiefs are to meet Wednesday to review their options to present to US President Barack Obama, after abandoning attempts to work with Russia to impose a truce.

State Department spokesman Mark Toner confirmed that some military options might be discussed, but said Secretary of State John Kerry is still working hard to pursue the diplomatic track with allies.

“Just because we’ve temporarily suspended the cooperation that we had bilaterally with Russia on Syria doesn’t mean that we’ve closed any doors on multilateral action,” Toner said.