Dundalk

The last time the meeting was held in Northern Ireland was at Hillsborough Castle in 2006, before another was held in Dundalk, County Louth, 2007.

Mandy Kelly from Dundalk has not seen her sons for more than 1,000 days.

School officials in Dundalk, where Kyran lived with his mother, were reportedly told at the end of the 2022 summer term that he would be attending school over the border – but that claim was not confirmed.

Filmed in Belfast and Dundalk, Peppiatt previously told BBC News NI: "It's definitely more controversial than the usual movies that come out of Northern Ireland."

A search for the remains of Captain Nairac at Faughart near Dundalk in the Republic of Ireland ended last month without success.