Following Ojeda's mistreatment of the Indians at the river, a fort had to be built to protect the vital crossing. Late in 1494, the first Indian rebellion took place at this spot; the fort was destroyed and ten Spaniards killed by the local tribes. Columbus retaliated with a force of 500 led by Ojeda. The rebels were badly beaten and some 1500 were taken as slaves--600 were shipped to Spain and the remaining were parceled out to those on the island.