The total loss of life resulting from Pontiac's War is unknown. About 400 British soldiers were killed in action and perhaps 50 were captured and tortured to death. George Croghan estimated that 2,000 settlers had been killed or captured, a figure sometimes repeated as 2,000 settlers "killed". The violence compelled approximately 4,000 settlers from Pennsylvania and Virginia to flee their homes. American Indian losses went mostly unrecorded, but it has been estimated at least 200 warriors were killed in battle, with additional deaths if germ warfare initiated at Fort Pitt was successful.