Counter terrorism police are leading the investigation into an attack on three prison officers by the brother of the Manchester Arena bomber.
The Prison Officers Association (POA) said 28-year-old Hashem Abedi – the brother of Salman Abedi – threw hot cooking oil over the guards before stabbing them with homemade weapons.
Sky News spoke to Mark Fairhurst the National Chair of Prision Officers Association (POA) who pledged that more should be done to protect prison staff.
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