Part of a UK government inquiry into where the truck came from and how it ended up in an industrial park east of London.
"If the truck came from Bulgaria, entering the UK via Holyhead is an unorthodox route," said Seamus Leeney, Northern Ireland's FTA policy manager at PA,
. " that security and controls have been increased in places like Dover and Calais, so it can be seen as an easier way to enter by going from Cherbourg or Roscoff to Roslare, then up the Dublin road.
" It is a long road and will add an extra day to the journey, "Leeni added.