The Lincoln City Supporters' Trust has claimed they have been victim of theft after their bank account was hacked.
Police are carrying out an investigation after unspecified amounts of cash were stolen.
A Trust statement this afternoon said: "In the recent past, an outside entity has been hacking into the Trust bank account and stealing money.
"As a result of this, and in tandem with the bank, police are now investigating.
"The Supporters Trust is very angry and upset that, once again, outside influences are trying to influence and manipulate the Trust.
"There will be no further comment at this stage as it might prejudice the police investigation."
Interim vice chairman of the Trust, Tony Smith, along with board director of the Trust and the football club's joint vice chairman David Featherstone reported the anomalies to police.
They have disassociated themselves with the Trust statement, but said: "On Thursday, December 5, Lincolnshire Police were called by ourselves of matters relating to the Trust's financial affairs.
"On Friday, December 6, we both met with the police and David Featherstone subsequently signed a statement detailing our findings.
"There will be no further comment until the police have completed their investigation when we will advise members of the Trust the result of the investigation."
Police spokesman James Newall said: "We are looking into allegations over financial discrepancies in the accounts. That is all we can say at this moment."
The Trust was formed back in 2001 and helped the club stave off extinction when they were plunged into administration.
It is currently one of Lincoln City's largest shareholders owning one million shares in the club's holding company.