Detectives investigating child sexual exploitation in Rotherham have arrested 40 people over the past two months.
The 38 men and two women were questioned following allegations made by 13 victims about sexual abuse against them between 1997 and 2015.
The National Crime Agency said the people arrested are aged between 29 and 53 and are from Sheffield, Rotherham, Leeds, Dewsbury, and Maidstone in Kent.
All have been bailed or released under investigation pending further inquiries.
The Yorkshire town has been rocked by a series of allegations of sex abuse by Asian gangs
The spokeswoman said the victims in the latest cases were aged between 11 and 26 at the time of the alleged offences.
The National Crime Agency, often called ‘Britain’s FBI’, is conducting a huge investigation after a 2014 report found more than 1,000 young girls had been abused in the South Yorkshire town.
Scandals have since engulfed other towns and cities, including Newcastle, Telford and most recently Huddersfield, with a series of similar gangs jailed.
Vulnerable young victims were typically given drugs and alcohol before being passed around between men of Pakistani heritage to be raped and sexually assaulted at will.
Authorities did little to tackle the abusers or save their young victims from their terrible ordeals, often due to fears over being labelled racist.
The latest arrests are part of the ongoing Operation Stovewood investigation.
A huge investigation is being carried out by the National Crime Agency
What is Operation Stovewood?
The NCA launched Operation Stovewood, at the invitation of South Yorkshire Police, after Professor Alexis Jay’s 2014 report into the rape, grooming and trafficking of hundreds of children in Rotherham.
The Jay Report described how more than 1,400 children had been affected – a figure which was later established to be an underestimate by Operation Stovewood, which has identified 1,523 victims.
It is estimated the operation will cost more than £90 million by 2024 – the date to which current planning extends.
Towards the end of 2018, the NCA said it had 151 designated suspects, 275 other people under investigation and 296 female survivors of exploitation actively engaging with officers.
The NCA has full control of allegations between 1997 and 2013, with 250 staff and an annual budget that will soon reach £15 million a year.
Carl Vessey-Baitson from the National Crime Agency said: ‘Arresting such a large number of individuals as part of one Stovewood sub-operation shows our desire to listen to victims and bring offenders to justice is not wavering.
‘Stovewood is a challenging and complex investigation, with victims and survivors re-living abuse that took place many years ago.
‘To date we have engaged with over 410 victims and survivors and have arrested or interviewed by appointment 94 suspects, meaning this is the largest law enforcement investigation into non-familial CSAE ever undertaken in the UK.
‘Conducting such an investigation can only be achieved with the support and coordination of our partners, and South Yorkshire Police and Rotherham Metropolitan Borough Council continue to provide invaluable assistance’.