Officers made a 'frantic' bid to save Harlow victims
15 October 2012 Last updated at 13:15 BST
A fourth child has died following a house fire in Essex which police are treating as suspicious.
Fire crews were called to the property in Barn Mead, Harlow, at 01:45 BST.
Essex Chief Fire Officer David Johnson described the house fire as "incredibly intense" with temperatures inside reaching 1,000C and the flames taking hold "exceptionally quickly".