Reports this morning suggest the centre of Manchester is surrounded by a two-mile security cordon. In response to the announcement by Theresa May other political leaders have followed by cancelling their campaigns, and in Northern Ireland, so is the media.
The UTV Leaders debate due to be recorded tomorrow afternoon is cancelled and the BBC is taking all talk of politics off the screens.
Mick is founding editor of Slugger. He has written papers on the impacts of the Internet on politics and the wider media and is a regular guest and speaking events across Ireland, the UK and Europe. Twitter: @MickFealty