ISM volunteer Rachel Corrie was killed as she attempted to block an Israel Defense Forces (IDF) bulldozer conducting military operations in Rafah in the Gaza Strip on March 16, 2003. An internal IDF investigation concluded that Corrie's death was an accident but ISM eyewitnesses dispute this account, contending that the bulldozer driver deliberately struck Corrie as she was protesting in plain view. The IDF says that tapes of the event show Corrie below the driver's eye level, and also say that the noise level was too loud for Ms. Corrie to be heard. The activities of the bulldozer she was blocking are also subject to disagreement — ISM claim it was preparing to demolish the home of a Palestinian pharmacist. Other accounts backed by the film footage claim that the bulldozer was not near the house but was removing shrubbery covering a structure that could be used as an arms smuggling tunnel or to cover terrorists shooting at the IDF.