Computer firm Microsoft is hurrying to fix a bug with the Internet Explorer browser after it emerged that hackers have already exploited the glitch with attacks on US companies.
Microsoft said the bug could allow hackers to take over a computer, install malicious programmes and create user accounts.
Cybersecurity firm FireEye said so far there had been "targeted attacks seemingly against U.S.-based firms, currently tied to defence and financial sectors".
More top news
A man has been charged with murdering a six-year-old schoolboy in Peterborough 25 years ago.
President Trump and Melania took his armoured limo and presidential motorcade in a lap of honour around the famous Florida race track.
The three-minute track 'Electric Thunder', written by the star, won a music competition when he was pupil at Exeter Cathedral School.