A bomb exploded during Friday prayer at a Muslim 'shrine' in northeastern Bangladesh, killing two Bangladeshi men and wounding about 100 people, including the British ambassador, police and witnesses said. British High Commissioner Anwar Choudhury was taken to Osmani Medical College Hospital in Sylhet. He suffered an injury to his right leg that did not appear to be serious, the Bangladesh Foreign Ministry said in a statement. Choudhury was flown to the capital, Dhaka, by military helicopter after his treatment. Choudhury, a 44-year-old Bangladeshi-born Briton, was visiting the 'shrine' after assuming his post last week. "There was a big bang as the devotees were preparing to leave after the prayers," said Abul Kalam, a witness. "We all screamed and ran for cover." No one claimed responsibility for the blast at Shahjalal 'shrine' in Sylhet, 120 miles northeast of Dhaka, a police official said on condition of anonymity. No arrests have been made. Prime Minister Khaleda Zia conveyed her sympathy to the wounded and ordered an immediate investigation. In London, British Foreign Secretary Jack Straw said he was "shocked" by the attack. He said he had no further details of the incident. In January, a bomb killed five worshippers at the shrine. Police had no suspects despite questioning more than 20 people detained after the blast. **PHOTO CAPTION*** Two people were killed and the British High Commissioner to Bangladesh was among 50 people injured by a bomb blast at a Muslim shrine in the northeastern city of Sylhet. (AFP)