Academic held after girl's death

A university academic has been arrested after a teenage girl died within hours of being taken ill at a party in west London, which left three others in hospital.
Her death is currently being treated as "unexplained", but police are examining whether she died after taking drugs.
A Metropolitan Police spokesman said: "This is a line of inquiry. We await the results of the post mortem examination."
Officers were alerted by London Ambulance Service at around 4.10am on Saturday after the 15-year-old became unwell at a house in Barlby Road, north Kensington, west London.
The teenager, named by police as Isobel Clara Reilly, of Acton, west London, was taken to hospital but died later that morning.
Police said a 60-year-old man was arrested on suspicion of possession of drugs and child abandonment. He was subsequently bailed to return on a date in June. He is understood to be Brian Dodgeon, a research fellow at the University of London's Institute of Education.
A 14-year-old girl, believed to be Mr Dodgeon's daughter and two boys, both aged 14, were also taken to hospital as a precaution and remain in hospital under observation.
Det Sgt Neil Philpott, from Kensington and Chelsea borough, appealed for fellow party goers to come forward with information.
He said: "We believe the victim was taken ill during a party at the address in Barlby Road. We are yet to make contact with all those who attended and would ask anyone who was present at any point during the evening to make contact with officers."
In a statement released through police, Miss Reilly's family said: "Isobel's family and friends are devastated and heartbroken by her untimely death. We hope that if anything positive comes from this dreadful event, it is that others will make the right decisions to be safe and well in the future."