Former Det Sup Stuart Blaik, who led the investigation into the police officer's death, has publicly shared his views on the case for the first time.

The arrests follow disturbances linked to anti-immigration protests in the market town.

They claim around 230,000 homes would become available under their plan to limit social housing entitlements.

Sharif Ahmadzai, who is 26 and from Afghanistan, faces charges of homicide with intent, robbery and weapons offences.

Knox, who was convicted and later acquitted of the murder of a British student, said she does not downplay the seriousness of Meredith Kercher's death.

Four men are in custody following the incident in Pontnewynydd, Torfaen, Gwent Police say.