The Webster Police chief said the two killed firefighters, including a volunteer officer who was also a police lieutenant, did not expect to be "shot and killed" in the line of duty.
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Despite the use of combustible cladding in tower blocks, ministers were advised that regulations were tough enough, ITV News has learnt.
A milder night across the north than last night, with rain sneaking into southern Scotland from Northern Ireland.
The singer, 31, said on Twitter that she and her partner Jonathan Powell were grieving their loss.