DHAKA - A Bangladesh war crimes court Sunday sentenced a British-based Muslim leader and a US citizen to death in absentia for murder, the latest ruling over atrocities during the 1971 war.

London-based Chowdhury Mueen-Uddin and Ashrafuzzaman Khan, from the United States, were found guilty by the International Crimes Tribunal (ICT) of 11 charges related to the kidnap and slaughter of 18 intellectuals during the conflict.

“Justice will not be done if they are not awarded capital punishment,” senior judge Obaidul Hassan told the packed court in Dhaka.

Prosecutors accused the pair of being “high command” members of the Al Badr group. “They killed top professors, journalists and doctors to make the nation devoid of any talent,” senior prosecutor MK Rahman told reporters after the ruling.

The pair refused to return to Bangladesh to face the tribunal, which Mueen-Uddin’s London-based lawyer described as lacking “all credibility”.

“Mr Mueen-Uddin has consistently maintained that he is prepared to stand trial and establish his innocence before a court of law that is fully independent and impartial,” Tony Cadman said in an emailed statement. Law Minister Shafique Ahmed said officials were negotiating with Britain and the US for the pair’s return, although it is unclear if extradition requests have formally been made.

“The government will try to bring them back. We are negotiating with the countries where they have taken refuge,” the minister told AFP. But reacting to the sentence, Britain said it opposed the “application of the death penalty in all circumstances”. “The UK believes that it is essential that any trial meets appropriate human rights standards,” a foreign office spokesperson added.

“Where concerns have been raised, we hope that the ICT will address these promptly and transparently to ensure the continued integrity, independence, and reputation of the legal process in Bangladesh.”

The tribunal has now convicted 10 people, mostly leaders of Bangladesh’s largest Islamic party the Jamaat-e-Islami, for war crimes, with seven of them sentenced to death by hanging. At least another eight are on trial.

The trials have sparked protests throughout the Muslim-majority country, leaving at least 150 people dead since January when the court started handing down verdicts.

Jamaat claims the cases are politically motivated and accuses the secular government of trying to execute its entire leadership ahead of elections. The government says the trials are needed to heal the wounds of the conflict.

The latest sentences are unlikely to trigger a backlash in the volatile country since both men, aged in their 60s, left the country years ago. Mueen-Uddin has held positions in a host of top Islamic organisations in Britain and was involved in setting up the Muslim Council of Britain - the country’s largest umbrella group representing Muslims.