Oil services provider Petrofac is facing a £400 million (US$514 million) lawsuit after one of its former executives pleaded guilty to bribery and corruption charges.

Barclays Bank and four of its ex-directors will stand trial for the fraudulent fundraising of £11.8 billion (US$ 21.9 billion) from Qatar in the wake of the financial crash, a London Crown Court heard Monday.

UK authorities convicted Tuesday four men on fraud and bribery charges for a £160 million (US$ 200.18 million) scheme that tricked banks into investing in the installation of broadband networks in sewers.

British engineering firm Rolls-Royce has been accused of bribing state-controlled Brazilian oil company Petrobras for a US$ 100 million contract.