From BBC News:

Bangladesh’s ex-Prime Minister Sheikh Hasina has been prevented from boarding a flight home from London after the Dhaka government barred her return.

The military-backed interim government has asked all international airlines not to carry her.

It says she will be arrested over the deaths of four protesters during a riot last October if she returns home.

Sheikh Hasina has vowed to return to Bangladesh to clear her name and participate in elections.

Speaking on leaving Heathrow airport in London, Sheikh Hasina said the Bangladeshi authorities had sent a letter to British Airways, telling them not to carry her or they would not be allowed to land in Dhaka.

"I am ready to go to jail if necessary but I want to go back to my country," she said, adding that she would now consider her next moves.

Sheikh Hasina, who leads the opposition Awami League, left Bangladesh in late March, a few weeks after the interim government declared a state of emergency.

Update (4/22/2007 8:45 PM):

Item 1: A court in Bangladesh has issued an arrest warrant against Sheikh Hasina on the charge of murder, conveniently on the same day she attempted to fly back. They have branded her a "fugitive". This will allow the government to confiscate her property and assets in Bangladesh. If you are as confused as I am that the military government should brand her as a "fugitive" while at the same time barring her from returning to the country to face the charges, then you have now tasted a little bit of the doublspeak that military dictatorships are capable of.

British Labour Party MP Emily Thornberry accompanied Sheikh Hasina to Heathrow Airport earlier today when she was denied passage on British Airways. She negotiated unsuccessfully with British Airways at Heathrow. She has also said that she will raise the issue of Hasina’s banning with British Foreign Secretary Margaret Beckett and also in the British parliament.

Item 2: The High Court in Bangladesh has responded to a Habeas Corpus petition filed on behalf of Khaleda Zia protesting the military government’s action restricting her to her house without charge. The High Court has ordered the military government to explain in writing within five days why the court should not order the government to produce Khaleda Zia in court to prove that she is not under house arrest. This has thrown a wrench into the military’s plans to send Zia into exile - Zia remains in Bangladesh and plans to ship her to Saudi Arabia have at least for the moment been postponed. It appears that, while the lower courts appear to have already buckled, the High Court is challenging the military at least at some level. This could get real ugly real soon.