Two people arrested in connection with a double murder in Cambridgeshire have been released with no further action taken.
The 27-year-old man and 33-year-old woman had been arrested in the early hours of Thursday in Cambridge.
It followed the shootings of two men at properties in Meridian Close, Bluntisham, and The Row, Sutton.
A 66-year-old man, of no fixed abode, remains in custody.