Devon and Cornwall Police said the investigation was ongoing and due to the complexity of the case inquires were expected to take several months.
Detective Constable Glenn Harrop said; "We believe there are potentially hundreds of victims from across the country."
Two women from Tavistock have been arrested by police investigating an alleged European music festival ticket scam.
The women, aged 50 and 21 were arrested on suspicion of fraud by misrepresentation by officers from Devon and Cornwall Police.
The force is investigating an allegation of fraud surrounding the sale of tickets for Tomorrowland 2013 - an electronic music festival held near Antwerp, near Belgium in July.
Police believe there could potentially be hundreds of victims from across the country and are urging anyone who thinks they have been scammed to get in touch.
A teaching assistant from Tavistock has been killed while on holiday in the French Alps.
52 year old Felicity Ward, also known as Fizz, fell 330ft when she was hiking in the Valjouffrey Valley in the Isere region of eastern France.
She taught at St Peter's Church of England Junior School.
The school posted on its website; 'Fizz was a much respected and valued member of staff who will be sorely missed. Our thoughts and prayers are with her family at this sad time.'
Callington Road in Tavistock is closed both ways due to an accident involving two vehicles between Uplands and the B3257.
Police are at the scene directing traffic.
A group of shoppers in West Devon has launched a campaign called Totally Locally in Tavistock aimed at getting local people to shop in their town's local shops.
Russell Street in Tavistock is blocked in both directions due to a serious accident at the junction with West Street.
A stray dog from Devon has been re-homed after recovering from a life-saving heart operation. Sally, an 8 month old Border Collie was found straying on Dartmoor in November last year. She was taken to the Wingletang Rescue and Re-homing Centre near Tavistock.
Vets found she was suffering from a severe heart murmur and would need a £4,000 operation to save her life. Locals donated the money and Sally has now recovered and is enjoying her new home.
An exhibition is being held at Tavistock Museum to mark the 70th anniversary of 29th Division. The American army unit was stationed in the town in World War Two and had the highest death toll of the war.
A special exhibition is being held at Tavistock Museum to mark the 70th anniversary of 29th squadron. The American army unit was stationed in the town in World War 2 and had one of the highest death toll of the war.