An investigation has been launched into the theft of a string of disability-friendly public pay phones in Leeds.
It is thought the same culprits are behind successful attacks on eight booths across the city centre and damage to another three.
Now the company that installs them is offering a reward for information leading to the conviction of those responsible.
Derek Parkin, director of Infocus Public Networks, said: “We have phones in all the major cities – London, Manchester, Bristol, Birmingham – and we’ve had the odd problem, but never anything on this scale.
“To say I’m not very happy would be something of an understatement.”
The phones – installed in several high-prominent locations including The Headrow, Park Row, Bond Court, Vicar Lane, and Kirkgate – are specially adapted to allow wheelchair access.
Infocus had 15 in Leeds.
Between August 27 and September 9, several were targeted by thieves thought to be armed with a crowbar to wrench off the phones and the attached cash boxes.
The company was unaware of the attacks until an engineer went on a cash collection last week.
Mr Parkin, who said they would be replaced, estimates the cost of losses and damages to run to about £8,000.
He added: “We occasionally have problems with vandalism, but this is much worse.
“We will be replacing them, but we need to establish who is behind it.”
He said the company would offer a £500 reward for information to bring the thieves to justice.
Tim McSharry, of the Access Committee for Leeds, said the pay phones provided a potentially vital service for disabled people.
“They provide a critical point of contact for many,” he said. “Without them, the consequences for someone in a vulnerable situation could be devastating.”
West Yorkshire Police said it was pursuing several positive lines of enquiry. Anyone with information should contact city centre police on 101.