The total number of people killed in East Pakistan is not known with any degree of accuracy. Bangladeshi authorities claim that 3 million people were killed, while the Hamoodur Rahman Commission, an official Pakistan Government investigation, put the figure as low as 26,000 civilian casualties. According to Sarmila Bose, between 50,000 and 100,000 combatants and civilians were killed by both sides during the war. A 2008 "British Medical Journal" study by Ziad Obermeyer, Christopher J. L. Murray, and Emmanuela Gakidou estimated that up to 269,000 civilians died as a result of the conflict; the authors note that this is far higher than a previous estimate of 58,000 from Uppsala University and the Peace Research Institute, Oslo.