Nottingham police station attack appeal
Police want to trace a number of witnesses after an attack on a police station in Nottingham last month.
Canning Circus police station in Nottingham city centre was petrol bombed during street violence on 9 August.
Fifteen people have been charged with arson with intent and violent disorder since the incident.
Officers believe up to 40 people could have been involved and have appealed for information.
Nottinghamshire Police want to speak to the driver of a car, possibly a private hire taxi, whose vehicle was set upon by some of the group.
They also want to speak to drivers of vehicles in Derby Road, and near Canning Circus island, who had to take action to avoid the violence.
Police would also like to talk to members of the public who gave information to police in Alfreton Road as they responded to the attack.
Detective Sergeant Michael Allen said: "Many of the offenders had their faces covered at the time so descriptions of clothing worn by the group could assist the investigation greatly."
A total of 125 people have been arrested and 74 people charged in connection with the violent disorder in Nottingham over three nights.