July 31 1937
Coinciding with the visit of the King and Queen to Belfast on Wednesday, armed men attacked Customs huts on both sides of the Irish Border, bombing the buildings and completely destroying them.
Both huts at Carrickarnon were destroyed, after two members of the RUC had been held up by seven men, one of whom is reported to have been armed with a Thompson sub-machine gun.
More than a score of other huts were burned out.
A dwellinghouse, a shop and dance hall, at Carrickarnon, were also fired.
The railway bridge at Faughart was mined. One mine exploded, tearing away portions of the arch and uprooted some of the sleepers.
Three other mines found underneath the sleepers did not explode, and were removed by a Free State Army Officer.
Five minutes afterwards, five hundred excursionists from the Free State passed over the bridge in a special train running to Belfast in connection with the Royal visit.
Following a search of the Rockmarshal mountain, near Dundalk, on Thursday, three young Dundalk men were arrested in a tent near the mountain top.
They were later charged at a Special Court and have been remanded in custody.
Two of them are charged with having burned the Customs hut at Carrickarnon, and the third with having conspired to do it.
The explosion at Faughart railway bridge, if it had gone off according to plan, would have left a good deal of the Upper End and the Railway Works without water.