Three family members have been jailed for a total of 51 years for their parts in the death of a 19-month-old baby girl who died in an arson attack.

Richard Kwayke, 28, of Andover Road, Twickenham was found guilty of the murder of Siariah Letang, from Thornton Heath, and sentenced to 35 years' imprisonment.

He was sentenced to a further 25 years' to run concurrently for attempted murder.

Toddler Siariah Letang, her mum and grandmother and two other children were brought out from a building in Arnould Avenue, in Camberwell, after the fire in September lat year and all taken to hospital.

Siariah was pronounced dead on arrival at King's College Hospital, having died from carbon monoxide poisoning from inhaling smoke.

Siariah's mother Ellisha, 24, her 45-year-old grandmother Brenda Ricketts and a four-year-old boy and 11-year-old girl suffered from burns and smoke inhalation and were later released from hospital.

Kwayke's 19-year-old brother Dimitri John-Lewis, from Paddington was found guilty of the manslaughter of Siariah Letang and sentenced to 10 year's imprisonment. He was also sentenced to a further two years' imprisonment, to run consecutively for perverting the course of justice.

Their mother Josephine Nicolas, 46, also from Paddington, was found guilty of perverting the course of justice and sentenced to four years' imprisonment.# At a trial at the Old Bailey in June, the jury heard how Kwayke started the fire on September 18 at the maisonette in Camberwell, in a revenge attack after a fall out with the family. He poured petrol through the letterbox and set it alight while Siariah and four others slept upstairs.

At the Camberwell flat remnants of a plastic bottle were discovered on the doormat along with a piece of tapered paper. There was severe fire and smoke damage to the property after the accelerant caused a "flash explosion".

Officers arrested Kwayke in his Twickenham home later that day.

Josephine Nicolas was arrested on suspicion of attempting to perverse the course of justice, having given a false alibi in respect to Kwayke's movements when interviewed by police.

Dimitri John-Lewis was also arrested on suspicion of murder. He had been caught on CCTV a few hours before the attack carrying a petrol can from his home address. He left the address with his brother in a blue Ford Escort.

At 1.30am CCTV captured the Escort driving into Porchester Terrace from Bayswater Road and passing a Shell petrol garage and pulling up. John-Lewis then walked back to the petrol station and filled up the container, paying for £3 worth of petrol.

Acting Detective Chief Inspector Rick Murphy, from the MPS's Homicide and Serious Crime Command, said: "This was a cold-blooded and pre-mediated attack with the full knowledge that young children were asleep in the property with the rest of the family.

"It has resulted in the tragic death of a little girl who had yet to reach her second birthday. The fire has wrecked the lives of all those concerned. I hope today's sentences go some way towards helping the family come to terms with their dreadful loss."