Suffolk Police said they are treating the deaths of three children at a house in Lowestoft as suspicious.
They are waiting for the results of post-mortem examinations due to take place today.
Craig McLelland, the father of three children found dead at a house in Lowestoft, told reporters, "When I got a phone call saying somebody has committed suicide, I had a feeling I knew who it was":
The mother of three children found dead at a house in Lowestoft recently wrote that she feared her children would be taken away from her.
Fiona Anderson, who has been named locally, also wrote on Facebook, "Mummy loves you. Mummy will keep you safe".
Police investigating the deaths of three children in Lowestoft in Suffolk are waiting for the results of post-mortem examinations. A pregnant woman fell to her death at a car park before police discovered the bodies.
The father of three children found dead at a house in Lowestoft has spoken of his grief.
Craig McLelland was comforted by friends as he returned to the house in London Road South this evening.
He told reporters "I've just lost my family - all my children are dead. How would you be feeling?"
Mr McLelland took time to thanks we-wishers who had left tributes outside the house before being led away by friends.
Earlier, the body of a woman, named locally as Fiona Anderson, was discovered at a multi-storey car park in the town.
The woman found dead close to a car park in Lowestoft has been named locally as Fiona Anderson.
The bodies of three young children were later found at an address in Lowestoft. Police discovered them during enquiries into the death of a woman in the town this morning.
Well-wishers have been leaving toys as tributes to the three children who were found dead at a property in Lowestoft, Suffolk this morning.
Toy tributes to the dead children have been left at the scene where the bodies were found in London Road South, Lowestoft.
Police have cordoned off the area around the house where the bodies of three children were discovered this morning.
This is believed to be the car park on Gordon Road in Lowestoft, Suffolk where the woman's body was discovered:
Police say they believe she fell from the multi-storey car park, sustaining severe head injuries.