A police officer from Washington DC, part of a force that protects one of America’s largest and most well-traveled transit systems, was arrested for allegedly trying to aid ISIS, the terrorist faction based out of Syria and Iraq otherwise known as the Islamic State, IS, ISIL and Daesh.

According to the initial report, via ABC News, the officer — Nicholas Young — was attempting to make it easier for ISIS members to “communicate in secret.” He was pursing the delivery of tech items and possibly gift cards, specifically.

Unbeknownst to him until yesterday, however, he wasn’t communicating with actual ISIS operatives, but rather undercover FBI agents who are part of the bureau’s “Joint Terrorism Task Force” in the nation’s capital. They’ve been tracking the rogue police officer for a while now.

Despite the frightening nature of the arrest, and its potential implications, sources close to authorities highlighted that no real threats are aimed at DC or its public transportation.

More from ABC News:

Washington Metropolitan Area Transit Authority CEO Paul Wiedefeld sent a note to colleagues this morning, notifying them of the case. Metro transit police “initiated” the probe into Young, and the FBI has been investigating for “several years” since, Wiedefeld said, adding that Young has been fired, “effective immediately.”

Young, a 12-year veteran of the transit police force, was arrested this morning while at transit police headquarters in Washington, charged with attempting to provide material support to terrorists. He lives in Fairfax, Virginia, outside Washington.

He is expected to make his initial appearance later today in federal court in Alexandria, Virginia.

UPDATE: This from the FBI’s release …

According to the affidavit filed in support of the criminal complaint, Young told FBI agents that he traveled to Libya twice in 2011 and he had been with rebels attempting to overthrow the Muammar Qaddafi regime. Baggage searches revealed that Young traveled with body armor, a kevlar helmet, and several other military-style items.

According to the affidavit filed in support of the criminal complaint, in 2014, Young met on about 20 separate occasions with an FBI confidential human source (CHS) posing as a U.S. military reservist of Middle Eastern descent who was becoming more religious and eager to leave the U.S. military as a result of having had to fight against Muslims during his deployment to Iraq. During these conversations Young advised CHS on how to evade law enforcement detection by utilizing specific travel methods and advised CHS to watch out for informants and not discuss his plans with others.

Stay tuned to the blog for more on this developing story.