An Irish national is reported to be in custody in Britain in relation to investigations into the spread of foot-and-mouth disease.
In Northern Ireland, a man was arrested on the orders of Northern Ireland Department of Agriculture officials investigating the foot-and-mouth crisis.
He was detained by the RUC in Banbridge, County Down.
The arrest came hours after the department confirmed Northern Ireland's first outbreak of the disease.
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No further details are available at this time.
PA