Shesells, Liverpool Airport is not closed AFAIK. It is simply that the Ryanair flights have been suspended. According to their website the rest of the schedule is running on time.
All re-opened this morning. Arrests include a man in Liverpool, suggesting the airport closure or not was linked to information.
Some Ryanair and Easyjet flights to Liverpool and Glasgow cancelled for Sunday including to/from Cork, Dublin and Belfast. Check out the airlines websites for full details.
Was there any issue with Dublin Airport yesterday? The traffic from the M50 to the M1 was at a standstill at around 4pm - maybe it was just an accident.