The bodies of three children have been found in Lowestoft by police investigating the death of a woman, believed to be their mother.
The woman, thought to be in her 20s, was found with head injuries in Gordon Road just after 08:00 BST and died at the scene.
Police believe she fell from the Battery Green multi-storey car park.
The dead children, believed to be aged 11 months, two and three, were found at a house in London Road South.
Det Supt John Brocklebank said: "We are in the early stages of a large investigation into what has happened.
"It is too early to be able to come up with a definitive explanation and we will be keeping an open mind.
"However, from our initial inquiries we do not believe there is any threat to the wider community."
Cuddly toysPolice said the children's deaths were being treated as suspicious and their names would not be released until formal identification had taken place.
Officers said it was believed they were the children of the dead woman, who has also yet to be formally identified.
Cuddly toys and flowers were being left outside the three-storey property on London Road South, which is about a mile from the town centre car park where the woman was found.
Karleigh Burlingham, 20, who said she knew the dead mother, said: "She must have been going through a really tough time - it's completely shocking.
"She adored them kids, adored them. She was outgoing and friendly."
The children's bodies were being taken to the James Paget Hospital in Gorleston for post-mortem examinations.