Gardai have carried out a number of searches in Clontarf in Dublin in connection with the investigation into the murder of David Byrne.
The 34 year old was shot dead at a boxing weigh - in at the Regency Hotel in Dublin earlier this month.
Gardai have conducted a number of searches at locations in the the Clontarf area of the city today.
No arrests have been made but Gardai say the operation is ongoing.