IBM has reported a fall in sales for the thirteenth consecutive quarter.

The world's biggest technology services company said revenue fell 13.5% to $20.8bn, while net profit fell 17% to $3.5bn.

The strong US dollar and IBM's decision to move away from its hardware business both hit its performance.

US sales fell 8%, while European, Middle East and African sales dropped 17%. However, its worst performance was in Brazil, Russia, India and China where sales fell 35%.