Police investigating the killings of three children found in woodland near Shrewsbury have found a knife at the scene.
The formal identification of the Fuller siblings - Sam, 12, Rebecca, eight and Charlie, seven, is due to take place later.
They were reportedly stabbed to death by their father, Ceri, 35, who was found dead near his children with fatal injuries from a cliff fall or jump.
Post-mortems on the family will possibly continue into tomorrow to confirm the causes of death.
They had been reported missing to Gloucestershire Police last week, but it was officers from the West Mercia Constabulary who found them in a disused quarry near Pontesbury Hill.
Police say they are not looking for anyone else in connection with the deaths, describing it as a "tragic family situation".
But they are still treating their inquiries as a multiple murder investigation and continue to appeal to anyone with information to come forward.
Meanwhile, in the small town of Coleford in the Forest of Dean in Gloucestershire, where the children went to school, a formal church service has been held to remember them.
It was led by the Reverend Alan Wearmouth, who had helped to break the news of the tragedy to the young pupils on Monday.
Around 100 parents and children gathered in the grounds of St John's Church of England School for a candlelit vigil.
Flowers, toys and lanterns were placed at the foot of a tree. Among them were messages of condolences - some from children as young as five.
One read: "You were my best friends and I have sent my teddy to look after you."
Another said: "You all were very kind to me and were my very good friends."
One parent wrote: "Rest in peace little angels you are always in my thoughts."
Outside the school gates this morning emotions were running high as many parents struggled to make sense of the deaths.
One young father's eyes brimmed with tears as he asked: "How do you explain to your kids that their friends are dead, not because of an awful accident, but because their dad deliberately killed them?"
The grandmother of one pupil added: "I just can't imagine how their mother must be feeling. It just doesn't bear thinking about, it's just so so sad."
