Garda divers have concluded their search of sections of Dublin's drainage system after two men were spotted climbing down a manhole behind Dublin Castle.
A member of the public saw the pair going down a ladder into a manhole on Little Ship Street at about 10pm last night.
No one was found during the search by the Garda Sub-Aqua Unit. Gardaí at Pearse Street Station in Dublin are continuing to investigate the incident.
