Television presenter Anna Ryder Richardson today said she was "devastated" after a mother and child were seriously injured when a tree fell on them at a wildlife park owned by the star.
The woman and her three-year-old son were rushed to hospital by air ambulance after being hit by the tree at Manor House Leisure Park near Tenby, Pembrokeshire.
The young boy is being treated at Swansea's Morriston Hospital for serious head injuries.
His mother is also at the hospital with serious head injuries and possible fractures to her leg and pelvis.
Richardson, an interior designer and presenter who has appeared on BBC show Changing Rooms, runs the park with her husband Colin MacDougall.
Tonight they released a statement which read: "We are absolutely devastated by this and our only concern is for the little boy and his mother.
"Our thoughts are with them and their family."
The accident is being jointly investigated by Dyfed Powys Police and the health and safety team of Pembrokeshire County Council.
A council spokeswoman said: "The incident occurred at approximately 11.30 this morning at Manor House Leisure Park, St Florence.
"A tree is believed to have fallen on a woman and young child and as a result both have been seriously injured.
"Fire service and ambulance attended the scene and the casualties were conveyed by air ambulance to Morriston Hospital, Swansea."
It is not known if the mother and child are tourists or live locally.
A spokesman for Welsh Ambulance Services NHS Trust said: "We were called at 11.32am to an incident at Manor Park, Tenby, involving a tree falling on a woman and child.
"An ambulance, rapid response vehicle, air ambulance and duty officer attended the scene.
"A three-year-old patient with a serious head injury was conveyed by helicopter to Morriston Hospital.
"An adult woman with a head injury and possible fractured femur, pelvis and humerus was also taken to Morriston by air ambulance."
The park, whose website boasts it is "your very own wild Welsh zoo", is set in rolling parkland and houses animals such as rare Przewalski horses, as well as porcupines and camels.
A spokeswoman for Morriston Hospital said the family of the injured woman and child had requested that their conditions were not released to the media.