Terror police have launched an investigation after three devices were found within a train station and buildings near two airports.
Counter-terror police are leading the investigation after the devices were found to be explosive, Irish police are now supporting the police.
devices were delivered to Waterloo rail station and administration buildings at Heathrow and London City airports.
Sky News has released two images of the packages which were A4 sized white postal bags, inside the bags, there was a yellow jiffy bag which contained an explosive device.
On the packaging two Irish love heart stamps appear, with the words “Love Eire N” the stamp was issued last year as a wedding stamp by Ireland’s postal service.