Seven men were today facing lenghty jail sentences for stealing hundreds of thousands of pounds by blowing up cash machines across the UK, including the North-east.
The Liverpool-based gang also used motorhomes and lorries to drag ATMs away, after sawing through doors and shutters with high-powered tools.
CCTV footage shows the devastating impact of the gas explosions.
The gang targeted 13 cashpoints in Kingswells, Newtonhill, Huyton, Cheshire, Gloucestershire and the Thames Valley between February 2015 and February last year.
Prosecutors said they pumped oxyacetylene gas directly into ATMs via rubber tubing and ignited it – often with a spark from a car battery – to cause the blasts.
The gang got away with £52,000 when they targeted the ATM at Newtonhill’s Tesco in June 2015 and £17,000 less than two months later, at the Co-op in Kingswells.
The men were charged with conspiracy to cause an explosion and conspiracy to burgle commercial premises during a 12-week trial at Liverpool Crown Court.
Andrew White, 28, of Exeter Street, St Helens – one of Merseyside’s most wanted fugitives after he fled to Spain – was found guilty of the first count and admitted the second.
He was previously cleared of 31 gas bomb attacks on ATMs, in which a Huyton-based gang stole nearly £800,000, following a trial in December 2015.
The jury heard how the ringleader co-ordinated some of the gang’s activities on a hidden mobile phone from his prison cell while on remand.
His brother Anthony White, 26, of Kingswood, Huyton, was found guilty of both counts, along with Michael Galea, 41, of Gregson Road, Prescot; and Gary Carey, 40, of Gorseburn Road, Tuebrook.
Nanu Miah, 28, of Anderton Road, Sparbrook, Birmingham, was found guilty of the first count and admitted the second.
Two other men, Carl Cavanagh, 33, of Barford Road, Huyton, and Anthony Conroy, 29, of Ash Vale, Wavertree, admitted both conspiracies.
Scott Pearson, 35, of Woolfall Heath Avenue, Huyton, was found not guilty of conspiracy to burgle commercial premises.
Ian Unsworth, QC, prosecuting, said the gang used “dedicated, ruthless and sophisticated methods to steal vast quantities of money”.
He said they drove stolen vehicles in a “terrifying way” and relied on a huge number of mobile phones to avoid being caught.
The incidents included a failed effort by the gang to drag away an ATM containing more than £50,000 at a BT phone kiosk in Hillside Road, Huyton.
Police found a metal hook embedded in the front of the machine, attached to a heavy duty strap tied to a car tow bar, at around 3am on October 4, 2015.
Cavanagh, who was in frequent contact with Andrew White, was responsible for a gas attack on an ATM at a Barclays Bank in Hucclecote, Gloucester, on May 2, 2015.
Officers later chased an Audi, which initially had its lights turned off, along the M5. They saw the vehicle disappear as their own vehicle reached 148mph.
Mr Unsworth said the gang netted £81,000 after blowing up ATMs at a Barclays Bank in Swindon, Wiltshire, in the early hours of May 23, 2015.
Police discovered broken metal, shattered glass and a fire at the bank – the result of an explosion that would have threatened the lives of people nearby.
He said officers tracked a stolen Audi heading north up to Staffordshire at 9.10am, leading to a “quite remarkable and utterly dangerous” escape.
Mr Unsworth told the jury: “What you are about to see is a graphic illustration of the determined and ruthless behaviour of those involved in these attacks.”
Dashcam footage from an unmarked police vehicle showed the silver estate cross straight from lane three of the M6 to the hard shoulder.
Mr Unsworth said: “The Audi travelled along the hard shoulder continuously, at speeds in excess of 130mph, passing through the Doxey works unit towards junction 14.
“Due to its high performance and dangerous manner of its driving, the officers were struggling to keep it in view. It exited the M6 at junction 14.
“Due to the time of day, there were numerous other members of the public travelling in both directions. The Audi again accelerated, to speeds in excess of 140mph.
“It passed through the village of Eccleshaw and then out into the winding countryside road. This was the last time they sighted the Audi.”
Detective Chief Superintendent Chris Green, who heads up the North West Regional Crime Unit (TITAN), said: “This is the culmination of an extensive 12-month investigation into crimes involving thefts from cashpoint machines throughout the UK and a number of burglaries at residential properties.”
“Given the geographical spread of these offences the investigation has been complex and extensive.
“To gather all the evidence for the conspiracy to put before the courts detectives have worked together with investigation teams from Scotland, Cheshire, Thames Valley and Gloucestershire Police.”
Det Chief Supt Green added: “They used dangerous tactics in targeting ATMs, which clearly put members of the public at risk.
“The techniques used by the men involved in these attacks were extremely risky and we are fortunate that no one was hurt.
Judge Alan Conrad, QC, said the gang will be sentenced on April 19.