Senior detectives investigating a spate of young suicides in south Wales over the past year are to re-examine the files of 13 deaths in the area - including four cases that are officially closed.
Sources close to the investigation have told the Guardian that in the coming days detectives will look again at the files of 13 apparent suicides in search of similarities, amid concerns over the unexplained deaths.
In response to enquiries, South Wales police issued a statement saying: "We will be reviewing a number of cases of sudden deaths in the Bridgend area as part of the investigation process. At this stage, we can't confirm the number or further detail."
Philip Walters, the coroner with responsibility for Bridgend county borough, has identified 13 apparent suicides of people aged 27 and under.
Among the cases are five involving people aged between 21 and 27, three 20-year-olds, two 19-year-olds, an 18-year-old and two 17-year-olds. All are apparently unexplained and were within the space of a few miles.
Until now, officers have said only that they are investigating the apparent suicide of Natasha Randall, 17, who was found hanged in her bedroom at her home in Blaengarw, Bridgend, last week.
They said as part of their inquiries they would seek to establish Natasha's relationship with friends and would look through her computer as a matter of "routine".
Concern over possible links between suicide victims in the area have mounted this week after it was claimed that seven young people in the area who had hanged themselves were in some way connected.