Gardaí are conducting a high-level security investigation after reports that at least one of the three explosive packages in London were sent from Ireland.
Counter-terrorism police in London are investigating three packages containing explosives found at Heathrow Airport, London City Airport and Waterloo station.
There were no injuries after one of the packages ignited. London Met said: “small improvised explosive devices” were found in the A4 postal bags.
The Met's Counter Terrorism Command said it was treating it as a “linked series” of incidents.
It has emerged that at least one of the packages was posted in Ireland, with a suspicion that all three were sent from here.
London Met contacted the Garda Security & Intelligence Section at Garda HQ and an investigation is underway.
A Garda spokesman told the Irish Examiner: “Gardaí are assisting the London Met with inquiries in relation to the ongoing security incident in London."
