Keith Thomas Broomfield
Keith Thomas BroomfieldFacebook

An American citizen from Massachusetts has reportedly been killed by the Islamic State (Isis) militants during a battle in Syria.

The death of Keith Thomas Broomfield, who was a volunteer fighter with the Kurdish militia group- YPG, was announced on social media on Thursday.

He had joined the YPG Kurdish forces to fight against Isis. 

"You were a friend of the Kurdish people, a hero of justice and humanity. May you rest in peace, you will forever stay alive in our hearts," Save Kobane, a Facebook account affiliated to YPG noted, announcing the martyrdom of the American citizen.

Jordan Matson, a 28-year old former US Army soldier, who too is in Syria fighting for YPG, confirmed the report. Matson, who hails from Wisconsin, said: "Thank you for your sacrifice sir. You will not be forgotten. Rest in peace Keith."

It is believed that Broomfield arrived in Syria around February as a volunteer fighter for YPG. Konstandinos Erik Scurfield, a former Royal Marine, became the first Briton to die fighting Isis in March.

Since last year's Isis invasion of Kobane the Syrian Kurdish militia has recruited dozens of Americans and Europeans through social media to fight the Islamic State militants.

According to RFERL, at least four Americans are confirmed to be among the dozens of foreign fighters in Syria and Iraq.