The IT giant confirmed an audit was under way into the issue but said this was normal and routine. IBM refused to comment on reports claiming the company avoided paying up to $500m (£311m) in UK taxes from 1991 to 1996 by increasing the percentage of royalties the UK group paid its US parent on goods and services sold in the UK.
Cotton seedling freezes to death as Chang'e-4 shuts down for the Moon's 14-day lunar night
Fortnite easily out-earns PUBG, Assassin's Creed Odyssey and Red Dead Redemption 2 in 2018
Meteor showers as a service will be visible for about 100 kilometres in all directions
Saturn's rings only formed in the past 100 million years, suggests analysis of Cassini space probe data
New findings contradict conventional belief that Saturn's rings were formed along with the planet about 4.5 billion years ago