[bbc] IBM is being investigated by the US Department of Justice over allegations of anti-competitive behaviour, a computer industry trade body has said.
The Computer and Communications Industry Association (CCIA) said the investigation came after it urged officials to look into the matter.
CCIA accuses IBM of withdrawing software licences from business clients who do not also buy its hardware.
IBM denies any wrongdoing and says it will co-operate with any investigation.
The Department of Justice has declined to comment.
IBM 'in anti-competition probe'