Belfast Telegraph  Monday 17 March 2014  Four held after mortar
bomb seized  Four people have been arrested over the discovery
of a mortar device which led to a major operation near a
motorway  Four men are being questioned after a mortar bomb was
seized in a sting operation on a suspected dissident republican
gang.  Army bomb experts worked overnight in freezing
temperatures to make safe the improvised grenade launcher on the
M1 motorway near the border.  The rocket launcher was found in a
car which gardai stopped and searched as it travelled north
between junction 16 and junction 17 near Dundalk.  The
improvised mortar and launch tube, described as viable, was made
safe by the Army bomb squad and the motorway was closed for
several hours.  A Garda spokesman said two men were arrested at
the scene, both in their 20s, and another man in his 30s was
detained nearby.  In a follow-up operation, a property was
searched in Drumiskin, Co Louth, and another man in his 30s was
arrested.  The spokesman said a number o