Detectives investigating the Omagh bomb massacre are tonight still questioning a man about serious terrorist offences.
The 34-year-old suspect remains in custody after being arrested overnight in
Newry, Co Down, by officers investigating the August 1998 blast.
He is from the Dundalk area of Co Louth.
The arrest was made just days after senior officers stressed the investigation
into the Real IRA attack which killed 29 people, including a mother with unborn
twins, was ongoing.
Around 500 lines of inquiry have still to be checked out by detectives from
the PSNI and Gardaí.
Relatives of some of the victims have launched a multi-million pound civil
action against the five men they suspect of plotting the outrage. Despite delays, the families still hope their landmark case will be heard at the Northern Ireland High Court later this year.