Forty officers have been dedicated to the ongoing search for missing teenager Hollie McClymont from Glasgow.
The 14-year-old, who was visiting South Wales with family and friends, was reportedly last seen getting into difficulties in the water at Barry Island.
Acting Superintendent Marc Lamerton told ITV News police are 'extremely concerned' but are actively pursuing all lines of inquiry for Hollie's safe return.
The coastguards' role in the search has now been scaled down with the investigation headed by South Wales Police, but they remain on standby.
More top news
The men were assaulted with what police believe to be a knife.
Under current rules, both teams have to agree to the roof being closed, otherwise it stays open.
Carwyn Jones and Leanne Wood join forces to put forward an alternative plan for the UK's departure from the European Union