A man in his 30s arrested in Donegal in connection with a fire at Emyvale Garda Station has been released without charge.
The fire broke out at the Monaghan station on Monday morning.
The man was arrested in Donegal on suspicion of arson after a number of searches were carried out in Emyvale and Letterkenny.
A file will now be prepared for the Director of Public Prosecutions.
