London: An Algerian suspected of links to Osama Bin Laden and bomb plots in the United States and France has been freed on bail after more than seven years in prison in Britain, officials said on Thursday.

Although his name has been widely publicised in European trials, US extradition proceedings and past media reporting, the man can be identified only as "U" under British legal restrictions covering deportation cases against foreign terrorism suspects.

He is the second alleged Al Qaida figure to be freed by Britain in just over two weeks. While the government says they are dangerous, it lacks enough evidence to put them on trial in Britain and has so far failed in legal battles to deport them.

Now aged 45, U was arrested at London's Heathrow airport in February 2001 when attempting to fly to Saudi Arabia on a false passport.

In submissions to the special tribunal dealing with his case, the British government said that since 1996 he had been a "leading organiser and facilitator of terrorist activity aimed mainly at overseas targets".

It said he had direct links to Bin Laden and other senior Al Qaida figures.

Explosives

Ahmad Ressam, convicted of a plot to blow up Los Angeles International Airport on the eve of the millennium, was carrying U's phone number on him when he was arrested with 60kg of explosives on the Canadian-US border on December 14, 1999.

The United States sought U's extradition from Britain but withdrew the request in 2005 after Ressam ceased cooperating with prosecutors building a case against U. Germany and France described U as the man who incited a December 2000 plot to bomb a Christmas market in the French city of Strasbourg. The two countries convicted four and 10 men, respectively, in connection with that conspiracy.

British authorities say U was a senior Al Qaida trainer in Afghanistan in the late 1990s.

The special tribunal last year said he posed a "significant risk to national security" and had "shown no sign of disavowing his former beliefs or associates".

"There are credible grounds for believing that U has been, and could again become, a senior organiser and facilitator of Islamist international terrorism."

The terms for U's release from prison were not made public, but a spokesman for the Home Office, Britain's interior ministry, said the government had sought the "strictest bail conditions". U's lawyers declined to comment.

The last major suspect to be freed, Jordanian preacher Abu Qatada, has been confined to his home for 22 hours a day and forbidden from using any mobile telephone or connecting to the Internet since being released on June 17.

The men were among a group of foreign nationals who were at one time imprisoned without charge under sweeping counter-terrorism powers. After these were ruled illegal and expired in 2005, U and Qatada remained in jail pending deportation until they were granted bail.

U's appeal against expulsion is due to be decided by the country's highest court, the House of Lords.

There are credible grounds for believing that U has been, and could again become, a senior organiser and facilitator of international terrorism."