Through a John Doe summons issued to the U.S. bank holding the correspondent account, the IRS can view records of deposits and payments by check and wire.

FORBES: Wells Fargo Hit With IRS Summons For Tax Haven Account Data

Although Wegelin had no branches outside Switzerland, it accessed U.S. banking through a correspondent UBS account in Connecticut.

FORBES: Swiss Bank's Tax Evasion Sentence Is Really Death

Ms Sanchez's Twitter account has not been updated since Thursday and the BBC's correspondent in Havana, Sarah Rainsford, said her mobile phone was unreachable and appeared to have been cut-off.

BBC: Cuban dissident blogger Yoani Sanchez arrested

It included several substantial paragraphs, from what The Times called a special correspondent in Helsinki, setting out an edited version of Pastor Humbert Droz's account of Lenin's message.

BBC: Secret files reveal Franco plot

Just before the U.S. Federal Reserve raised interest rates by half a point May 16, Biggs and Senior Correspondent Assif Shameen ran through the outlook for various Asian markets, having already taken the hike into account.

CNN: 'Asia Is The Best Place'

However, the BBC's entertainment correspondent, Lizo Mzimba said that once final figures - which include digital catch-up services - are taken in account, the situation could change.

BBC: Christmas Day television ratings topped by EastEnders