A straddle carrier comprises a frame (10) having opposite substantially parallel sides (12, 14) and which is configured for straddling a container to be lifted and transported between said opposite sides. The carrier has three ground wheels (24, 26) and (28) to enable the frame to be positioned over the container. The ground wheels comprise a first ground wheel (24) disposed at least approximately centrally on one side (12) of the frame, and second and third ground wheels (26, 28) disposed at opposite ends of the other side (14) of the frame. The second and third wheels (26, 28) are steerable by rotation about respective substantially vertical axes (40, 42).