A GRIEVING mum spoke of her "immense heartbreak" after her two young kids tragically died in a house fire.

       Jade Horton desperately tried to save her "beautiful children" Isaac and Sienna Jenkins, aged 3 and 7, in the horror blaze on December 10 2020.

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       Jade Horton survived the blaze but broke both of her legs after jumping out a second floor window Credit: FACEBOOK/JADE HORTON 4

       Isaac, 3, and Sienna, 7, tragically died in the terrible house fire Credit: FACEBOOK/JADE HORTON

       The deadly incident took place at their family home in St Neots, Cambridge, and Jade broke both her legs when jumping to safety from a second-floor window.

       The former prison officer told an inquest today: "I always did my best for my children and I will always love them unconditionally.

       "To lose both your children is an immense heartbreak that never leaves you. I'm proud to have been their mother."

       Described in tributes as "little angels", Isaac and Sienna were in their bedrooms on the first and second floors when a television at the end of Isaac's bed set alight due to an electrical fault at around 7am.

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       Both children suffered burns but would likely have been unconscious beforehand by smoke inhalation, which was given as their cause of death in a post-mortem.

       In an emotional statement, Jade wrote how she rushed to Sienna's top-floor bedroom after hearing her screams.

       She said: "I heard Sienna calling for me. I tried to open her door but couldn't. There was smoke coming from Sienna's bedroom.

       "I couldn't get downstairs. The heat was so intense.

       "I went to my bedroom window and shouted as loud as I could 'Help, help'."

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       Jade's partner at the time wrote in a statement how his arm set alight as he tried to reach the children as the blaze raged on.

       His statement, summarised by the coroner, read: "I managed to get to Isaac's door and his room was on fire and I couldn't see him.

       "I could hear Sienna screaming upstairs. It was impossible to get up. The heat and smoke were overwhelming.

       "I tried again to get upstairs and my arm caught alight. I was struggling to breathe and see."

       The court heard that smoke alarms in the three-storey home were delayed due to how the smoke travelled through the building, which allowed the fire to spread faster.

       Peter Jones, a fire investigation officer, said: "The first-floor smoke detector probably didn't have any smoke hitting it which allowed the fire to develop quicker.

       "When smoke detectors did activate the fire would have already reached a substantial size."

       Mr Jones said that the fire from Isaac's room, which was on the first floor, spread up the stairs as his bedroom door was held open by a stairgate.

       He added that the house's top floor window and front door being open created the "perfect storm" for the fire to spread.

       Mr Jones said: "It was just unfortunate that all the perfect conditions, if that's the right term, were met.

       "The opening of the rear bedroom window and the front door. It was how a chimney works."

       Jade had previously called for checks on fire escape routes in neighbouring houses to avoid future deaths and said she was "saddened" that those concerns were not being realised.

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       She said today: "I'm saddened that it hasn't been deemed that more houses should be checked.

       "I will lobby for more safety features to be added to avoid destroying more lives."

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       The fire was reportedly a substantial size already before smoke detectors activated Credit: BPM 4

       Flowers were laid in memory of the young children Credit: ？ Terry Harris