Two men have been arrested after the unexplained death of a teenager in South Wales.

The 16-year-old girl died after an incident in Treorchy, Rhondda Cynon Taf, on Friday afternoon.

South Wales Police described her death as “sudden”, adding that the cause had not been confirmed.

The two men arrested are in hospital being treated for serious injuries.

Police said the incident is not being treated as terrorism and that those involved are thought to be known to each other.

Officers had been called to a premises in Baglan Street, in the village of Ynyswen, at about midday after reports of a stabbing.

The street was closed off and a cordon was erected around a takeaway restaurant, the Blue Sky.

John Belgrove, a builder, who lives on Baglan Street, said he was in his shed when his barking dogs alerted him to emergency services just after midday.

He told the PA news agency: “I came out and I counted over the next half an hour about 31 different emergency vehicles.

“I saw what looked like a Chinese lady, probably in her 20s, crying uncontrollably and she had blood on her front.

“There was one elderly Chinese man who was walking wounded with his head all bandaged up and they put him in the back of an ambulance.”

Another younger man was seen being treated by paramedics, he said.

Superintendent Rich Jones, from South Wales Police, said: “This is clearly a very serious incident which has caused significant shock and concern for both the local and wider community.

“We have a dedicated team of detectives working hard to establish the exact circumstances that have led to the tragic death of this young girl.

“While the investigation is still in its early stages, we can confirm that those involved are understood to know each other and we are currently not looking for anyone else in connection with the incident.

“There will be a significant police presence in Baglan Street over the weekend but we will reopen the road at the earliest opportunity.

“In the meantime, the support and understanding of the local community is very much appreciated.”

Chris Bryant, Labour MP for Rhondda, said he is aware of “disturbing events on Baglan Street” and said his thoughts go out to all those affected.

First Minister of Wales Mark Drakeford tweeted that news of the incident was “deeply concerning”, adding: “I’m being kept informed of developments and my thoughts are with everyone in the community during this worrying time.”

Police have said any witnesses to the incident should call 101 immediately and give reference *077519.

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