WASHINGTON (AFP) - A Pakistani man who received commando training from the militants before moving to a Washington suburb has been arrested and charged with providing support to a terror group, US officials said Friday. Jubair Ahmad, 24, stands accused of providing material support to Lashkar-e-Taiba and then lying about his involvement to investigators. According to an unsealed affidavit by a Federal Bureau of Investigation special agent, Ahmad produced and posted a propaganda video for LeT glorifying violent jihad in 2010, some three years after he arrived in the United States with his parents and two younger brothers. Terrorist organisations such as LeT, and movements affiliated with them, use the Internet and other media as part of well orchestrated propaganda campaigns, the agent stated in the affidavit. released by the US Justice Department. These campaigns seek to recruit individuals to participate in violent jihad and to promote the spread of terror. Ahmad faces up to 23 years in prison if convicted on the two charges. The department said the FBI had been investigating Ahmad, a legal permanent resident living in the state of Virginia, since 2009, after receiving information that the man might be linked to LeT. The FBI later learned that, as a teen, Ahmad received indoctrination and training from LeT while he lived in Pakistan, and that from the United States he communicated with the son of the groups founder Hafiz Saeed. The affidavit also said Internet giant Google provided records which confirmed upload of the propaganda video to an account on video-sharing website YouTube from an IP address associated with Ahmads residence. Revelation of the charges came on the same day the US State Department issued a worldwide travel alert ahead of the 10th anniversary of the September 11 attacks. The department said it had not identified any specific threats about possible attacks but that Al-Qaeda and its affiliates had demonstrated the intent and capability to carry out attacks against the United States and US interests.