New footage has emerged showing emergency officials at the scene of the train crash in France:
The country's interior minister has said at least seven people are believed to have died. There are reports that 10 people are critically injured and 60 others seriously hurt.
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An 'unarmed' black man, who was reported to be mentally ill, has been shot dead by police in California after his sister called for help.
"Rubble fell in on intensive care patients" in the early hours of Wednesday, medics said.
The inquiry's most senior lawyer is said to be considering stepping down after disagreeing with its chairwoman Alexis Jay over its future.