The Airtricity First Division club, currently top of the table, has suspended one of its players and notified the Irish football governing body of possible match-fixing activities
In a statement, the club confirmed that one player had been suspended as part of an internal investigation and stressed that they would comply and co-operate with any investigation.
The FAI has passed on all information to Uefa and Fifa, as well as the state authorities, in an effort to 'uphold the integrity of the sport'.
A statement released by Longford Town said that it had received information which 'could be construed as conspiring to influence the results of matches'.
"Longford Town FC wish to inform their supporters that the Club is in receipt of information with regard to a Longford Town player's possible involvement in activities which could be construed as conspiring to influence the results of matches," reads the statement.
"As a result of this information received Longford Town FC is obliged to notify the relevant authorities and conduct an internal investigation into the matter. The internal investigation has commenced.
"Subsequently one player has been suspended by the club while the investigation takes place. The club are compliant with all rules in this matter and will co-operate fully with any investigations."