The umpires have inspected the outfield and deemed it too damp for play to resume.
With no improvement in conditions, they head to the dressing rooms and shake hands with the captains.
The match has been officially called off, and Australia advances to the semifinals.
Afghanistan's semifinal hopes remain, but just barely.
Their fate now hinges on England, who must hand South Africa a heavy defeat tomorrow to dent their net run rate and push them down to third place.