The deaths of the six Philpott children in a house fire started by their parents "could not have been predicted or prevented", a serious case review has found.
The report carried out by the Derby Safeguarding Children Board in the aftermath of the tragedy found that while various professionals who had contact with the family could not have foreseen the fire, there were chances to get to know the family better.
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His comments followed the announcement of £620 million in financing to support projects and UK exports to Africa.
The 68-year-old is leaving this summer after seven years in the role.
Police were called to the first floor flat and were confronted by the 6-8ft snake. Residents had no idea how it came to be there.