An 18-year-old Long Island man tried to travel to Yemen and join al-Qaida operatives in waging “violent jihad,” federal authorities said Wednesday.

Justin Kaliebe, of Babylon, pleaded guilty to providing material support to terrorists in a secret hearing on Feb. 8. He is expected to appear in federal court in Central Islip Wednesday, authorities said.

Investigators said Kaliebe approached an undercover officer about joining a terror group and admitted he followed teachings of terrorist Yemeni cleric Anwar al-Awlaki and Sheik Omar Abdel-Rahman — the blind sheik tied to the 1993 World Trade Center bombing.

In secret recordings, Kaliebe claimed he wanted to travel to Yemen to fight the “Yemeni army” and to kill “those who are fighting against the Sharia of Allah … whether it’s the U.S. drones or their puppets,” prosecutors said. Kaliebe then allegedly said he hoped he could die fighting for his terrorist cause. In a July 9 recording, officials said he praised Osama Bin Laden who showed how to bring “an entire nation to its knees.”

”Firmly committed to this plan, he found both inspiration and guidance in the online teachings of al-Qaida leaders, including Osama Bin Laden, “said U.S. Attorney Loretta Lynch. “While the Internet has made worlds of knowledge available to all, unfortunately it is also used as a platform for al-Qaida and other terrorist groups to spread their poisonous propaganda.”

The NYPD said Kaliebe told an undercover officer that he planned to buy a plane ticket for Oman with the goal of traveling to Yemen and sent an email pledging his loyalty to al-Qaida saying the only way he will leave the terrorist mission is through martyrdom. On Jan. 21 he was arrested at Kennedy Airport trying to fly to Yemen.

“The NYPD is concerned about the continuing interest of some young Americans in violent jihad and their identification with terrorist organizations,” said NYPD Commissioner Ray Kelly in a statement. “That is why the NYPD Intelligence Division continues to track individuals allegedly evincing support for terrorism.”

Officials said the investigation is ongoing but it appears Kaliebe’s in some ways became self-radicalized by watching terrorist preachings online. “He set the wheels in motion – convinced of his well-thought-out plan – but didn’t get very far,” said FBI New York Director George Venizelos.

Terror cases such as this are often sealed if investigators try to get the defendant to cooperate. Once that cooperation has ended, the case is made public.

Kaliebe faces up to 30 year in prison at sentencing. He remains behind bars.

(AP)