As far as I am aware this was not reported in the main news, looking on the BBC website it was only a small segment in the NI section. It seems to me as if the mainstream media want to minimise the seriousness of Brexit when it comes to Northern Ireland - if this was a possible terrorist attack (which it is) in any other circumstances it would be all over the news . I'd be interested to hear if anyone or everyone had heard about this event as I know if I'd not looked at Irish news I would be blissfully unaware. I'm sick with worry about Brexit and the repercussions.
Makes me wonder how many other things go "unreported"
www.rte.ie/news/ulster/2019/0727/1065560-explosive-device-co-armagh/