The political situation is the tensest it has been in years. What do you need to know?
Hewlett-Packard is to pay $100m (£65m) to settle a lawsuit brought by a Dutch pension fund over its controversial $11bn purchase of British software firm Autonomy.
Hewlett-Packard has unveiled full details of its $5bn (£3.3bn) fraud case against the founder of the UK software company Autonomy, claiming that Mike Lynch inflated the revenues of his business by about $700m over a two-and-a-half-year period.
Hewlett-Packard has launched a $5bn (£3.4bn) claim in the high court against Cambridge software entrepreneur Mike Lynch and his former finance director Sushovan Hussain.
An email from a former finance director of UK software group Autonomy suggested the company was heading for a financial "plane crash" towards the end of 2010, according to lawsuit filed in the US by Hewlett-Packard.
Autonomy, the leading British technology firm whose former management is accused of inflating its value, sold $23m of software to a small Washington reseller in the year to December 2009. In February 2010, as some of the money began to fall due, Autonomy bought the company.
Hewlett-Packard has revealed it plans to sue the UK arm of Deloitte, auditor of the Cambridge software firm Autonomy that HP bought for $11bn (£6.6bn) before writing off nearly half the company's value and accusing the former management of accounting improprieties.
Autonomy's $11bn (£6.6bn) sale to Hewlett-Packard faces further scrutiny after documents cast doubt over the structure of some transactions conducted by the British software firm before its takeover.