From NPR - News National/International -

American Reportedly Fighting Alongside Extremists In Syria Dies

Douglas McAuthur McCain, in a March 2008 photo by the Hennepin County, MN Sheriff's Office.

This March 23, 2008 photo provided by the Hennepin County, Minn. Sheriff's Office shows Douglas McAuthur McCain. On Tuesday, Aug. 26, 2014, a U.S. official said McCain, a U.S. citizen, is believed to have been killed in Syria and was there to fight alongside a terrorist group, most likely the Islamic State group. (AP Photo/Hennepin County, Minn. Sheriff's Office)

A U.S. citizen reportedly fighting alongside a terrorist group in Syria has died.  The National Security Council has not said whether or not Douglas McAuthur McCain was fighting for the group that calls itself the Islamic State (also known as ISIS or ISIL.)

"They actually put out a statement that said that he had died in battle," NPR's Dina Temple-Raston tells the Newscast Desk.

A statement from the Security Council confirmed McCain's death, and noted that the White House was aware of his presence in Syria. Spokeswoman Caitlin Hayden added: "We continue to use every tool we possess to disrupt and dissuade individuals from traveling abroad for violent jihad and to track and engage those who return."

Thousands of young men around the world, including Westerners, have joined the Islamic State and other rebel groups fighting in Syria, as Temple-Raston has previously reported.

"The White House knows that there are some 150 Americans who have left the United States and actually gone to fight in Syria. What's unclear is who they're fighting for," she reports. They could be fighting for the Free Syrian Army, Temple-Raston says, an opposition group that the Obama administration supports.

This confusion is one of the reasons why the administration is keen on intelligence gathering in Syria, Temple-Raston says.

NBC News says it has contacted "several members of McCain's family and dozens of friends." NBC describes McCain as a 33-year-old who grew up in Minnesota's Twin Cities area and later moved to San Diego, Calif.

"McCain's online life ... painted the picture of a devout Muslim who deeply loved his family – along with Pizza Hut and hip-hop," NBC reports.