New arrests over summer riot including boy, 13
More arrests have been made, including that of a 13-year-old boy, following last summer's riots.
Northumbria Police have arrested 17 more people, suspected of involvement in violent disorder in Sunderland in August.
The day of unrest saw officers attacked, while vehicles, businesses and public buildings were left damaged and shops looted.
A total of 84 arrests have been made, with 30 people already pleading guilty to a range of offences, officers said.
Police raided a number of addresses on Wearside over three days.
Seventeen people, aged between 13 and 40, were arrested as part of an investigation into the events of 2 August, the force said.
Det Ch Insp Graeme Barr said officers were still "painstakingly" reviewing evidence.
"To those who think they may have got away with carrying out this activity because we have not yet arrested you, you are very much mistaken," he said.
"We won't stop."
Disorder broke out in Sunderland, parts of Teesside and other towns and cities in England, following the murders of three young girls in a knife attack at a Taylor Swift-themed dance class in Southport, Merseyside, on 29 July.
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