A man has been hospitalised following a serious assault in Cavan town on Friday night.
The incident occurred outside a premises on the Main Street of the town shortly before midnight.
A man in his 20s was taken to Cavan General Hospital and later transferred to Beaumont Hospital.
His condition is understood to be serious.
No other injuries were reported.
A 17-year-old male has since been arrested in connection with this incident and is currently detained under the provisions of Section 4 of the Criminal Justice Act 1984.
Anyone with information is asked to contact Cavan Garda Station on 049-4368800, the Garda Confidential Line on 1800 666 111, or any Garda Station.