LONDON - Britain extradited Islamist cleric Abu Hamza al-Masri to the United States on Friday to face terrorism charges after the one-eyed radical preacher finally failed in his eight-year battle to avoid deportation.The Egyptian-born Abu Hamza is accused by Washington of supporting al-Qaida, aiding a kidnapping in Yemen and plotting to open a training camp for militants in the United States.The 54-year-old cleric, jailed in Britain for inciting followers to kill non-believers, also achieved notoriety for praising the Sept. 11 attacks on the United States and running a mosque in north London that Britain said was a hotbed of Islamist radicalism.He was taken from a high-security prison in central England in a convoy guarded by large numbers of police to a US airbase where he was handed over to US officials and put on a plane to the United States.Earlier, two London High Court judges dismissed his request to delay the proceedings in order to allow the cleric, who did not attend the hearing, to undergo a brain scan that his lawyers said would prove he was unfit to be extradited.Instead, the judges said, "The sooner he is put on trial, the better.""It is unacceptable that extradition proceedings should take more than a relatively short time, to be measured in months not years," they added.Britain had vowed to extradite him as soon as possible after his appeal was rejected. Hours later, he was on his way out of the country.Lengthy legal battle ends in extraditionA fiery anti-Western speaker, Abu Hamza is said to have inspired some of the world's most high-profile militants including Zacarias Moussaoui, one of the accused Sept. 11 conspirators.The cleric was once a preacher at the Finsbury Park Mosque in north London, but was later jailed in Britain for inciting murder and racial hatred.Born Mustafa Kamel Mustafa, he moved to Britain as an engineering student in the 1970s, married a British woman and once worked as a doorman at discos in London.Abu Hamza, who is famous for wearing a hook in place of his missing right hand, says he lost both hands and an eye while living in Afghanistan in the 1980s while carrying out humanitarian work. The authorities say he was fighting for the Mujahideen against the Soviet Union.After being held on the US extradition warrant, he was jailed for seven years by a British court in 2006 for inciting Muslims to kill Jews and non-believers, based on extracts of speeches he had given years earlier.Hamza was indicted by a federal grand jury in new York in April 2004. He was accused of involvement in a 1998 hostage taking in Yemen that resulted in the deaths of four hostages - three Britons and one Australian.He was also accused of providing material support to al-Qaida by trying to set up a training camp for fighters in Oregon in the United States and of trying to organize support for the Taliban in Afghanistan.Four other terrorism suspects also lost their appeals against extradition and were put on two US civilian jets provided by US authorities to fly the suspects to the United States."They're gone," said a spokesman for London Police, which handles British extradition cases.All five cases had been sent to the High Court after the European Court of Human Rights refused to stop London from extraditing them."It is right these men, who are all accused of very serious offenses, will finally face justice in the US," Britain's Home Office interior ministry said."We ensured plans were in place so these men could be handed over within hours of the court's decision."The United States had sought Abu Hamza as well as Khalid al-Fawwaz, Adel Abdul Bary, Babar Ahmad and Syed Talha Ahsan to face prosecution in US courts on terrorism charges."These individuals are being transferred to the United States," the US Embassy said in a statement after the ruling. "These extraditions mark the end of a lengthy process of litigation through the UK courts and the ECHR."