Two men were found unconscious by Gardai after a suspected assault outside a Co Donegal nightclub overnight.
The incident happened at Lower Main Street in Letterkenny around 3am.
Both men were transferred to Letterkenny University Hospital.
However, their injuries are not thought to be life-threatening.
Gardai say they suspect the men were victims of an assault.
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Nobody has so far been arrested in connection with the incident.
It is understood that Gardai are viewing CCTV footage of the area in a bid to identify the alleged attacker.
The area has been sealed off and it is expected that a forensic examination will take place shortly.
Anyone with information is being urged to contact Letterkenny Garda Station on 0749167100 or any Garda station.
