US Attorney General Eric Holder has confirmed that two BP workers will face grand jury indictments on 23 criminal counts, Reuters reports.
Speaking at a news conference, Mr Holder also said that a former BP official has been indicted for hiding information from the US Congress.
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The "astonishing" find was made during an excavation at Vindolanda, near Hexham in Northumberland.
A High Court judge has ruled that doctors can stop providing life-support treatment to Alfie Evans against his parents' wishes.