LONDON, Aug. 21 (Xinhua) -- British Foreign Secretary David Miliband said Friday that the sight of the Lockerbie bomber "getting a hero's welcome in Tripoli is deeply upsetting."

Scottish authorities on compassionate" title="a.有同情心的 vt.同情">compassionate grounds Thursday released Abdelbasset Ali Mohmed al-Megrahi, who has been diagnosed with terminal prostate cancer, to return to Libya to die.

The Times reported that Megrahi flew out of Britain as a dying man deserving of compassion and landed in Libya a national hero when a crowd waving Libyan and Scottish flags welcomed him at the Tripoli airport as he emerged from Libyan leader Muammar Gaddafi's private jet.

The former Libyan intelligence agent served eight years of a 27-year minimum sentence on charges of murdering 270 people, including 189 Americans when a Pan Am plane blew up over Lockerbie in December 1988.

It was reported that the White House expressed deep regrets over the decision to release Megrahi. The decision also infuriated the families of many of the U.S. victims of the bombing.

Miliband stressed that the decision to release Megrahi on compassionate" title="a.有同情心的 vt.同情">compassionate grounds was taken by Scotland alone.

"We have been scrupulous in saying that this decision should be made by the Scottish authorities. We have been scrupulous in saying that to the Libyans," he said. "We have been scrupulous in saying that to the Americans. We've also been scrupulous in our engagement with the Scottish government."

The foreign minister said that the world will be watching Libya because of Megrahi's release.

"How the Libyan government handles itself in the next few days after the arrival of Megrahi will be very significant in the way the world views Libya's re-entry into the civilizedcommunity of nations," Miliband said.

British Prime Minister Gordon Brown wrote to Gaddafi, asking that there be no hero's welcome for the Lockerbie bomber and that Libya act with sensitivity.