Further tests over collapse death in Aylesbury
Further tests are to be carried out on a man who collapsed in a Buckinghamshire street, after a post-mortem examination proved inconclusive.
The 38-year-old, who has not been named, was found in Argyle Avenue, Aylesbury, on Sunday night and died in hospital. It is not known how he died.
Three men aged 32, 52 and 56 were arrested in a nearby flat and have been released on bail until 23 June.
Police said further toxicology reports will be carried out.