Days later, police announced they were widening their probe with a new investigation, Operation Fernbridge.
New York and Connecticut state regulators announced on Wednesday that they were widening their own rate-rigging investigations.
Universities should decide what they charged students, Lord Browne proposed, but those which charged the most would have to demonstrate they were widening access to the poorest students.
Mr. Besseghir's father, two brothers and a friend are also being held for questioning by France's antiterrorist police, who said they were widening their inquiry.
The French financial prosecutors investigating Diack and the former IAAF anti-doping chief Gabriel Dollé on charges of bribery, corruption and money-laundering, revealed they were widening their investigation to include Eugene 2021 as a result of the email involving Coe.
Malaysian military officials said on Sunday they were widening the search area because of indications the plane, a Boeing 777-200ER, may have turned back from its scheduled route shortly before vanishing from radar screens.
On Monday, Swiss officials announced they were widening their investigation into alleged money laundering in the bidding process that awarded the World Cup to Qatar.
Police on Monday also said they were widening their investigations to include Qavi, the Muslim cleric who was removed from a prominent Muslim committee after the selfie photos were published.
More than 36 hours after the last contact with Flight MH370, flying from Kuala Lumpur to Beijing, officials said they were widening the search to cover vast swathes of sea around Malaysia and off Vietnam, and were investigating at least two passengers who may have been using false identity documents.
