Four people have been arrested on suspicion of involvement in a spate of attempted dissident republican letter bomb attacks in Northern Ireland and south-east England, including on a number of Armed Forces recruitment offices.
The two men, 35 and 46, and two women, 21 and 44, were detained in Londonderry and have been taken to the Police Service of Northern Ireland's (PSNI) Serious Crime Suite in Antrim.
They are being questioned by detectives investigating the sending of explosive devices to Armed Forces careers offices in Oxford, Brighton, Canterbury, Aldershot, Reading and Chatham and the Queensmere shopping centre in Slough in February.
In October last year dissident republicans opposed to the peace process were also blamed for sending a series of letter bombs to high profile political and security figures in Northern Ireland.
None of the devices detonated.
- Do you want alerts delivered straight to your phone via our WhatsApp service? Text NEWS or SPORT or NEWS AND SPORT, depending on which services you want, and your full name to 07767 417704. Save our number into your phone's contacts as Oxford Mail WhatsApp and ensure you have WhatsApp installed.
Send your Letter to the Editor: What do you think? We welcome letters from our readers on a wide variety of subjects and you can send us a letter for publication here
11:20am Monday 28th July 2014
What do you think? We welcome letters from our readers on a wide variety of subjects and you can send us a letter through the blue headline above.
Our top stories
8:00am Tuesday 31st March 2015
NICOLA Blackwood has revealed she has been battling with a genetic condition for years but believes it has not affected her performance as a politician.
10:13pm Tuesday 31st March 2015
THE A34 is shut tonight both ways because of a lorry fire.
6:56pm Tuesday 31st March 2015
Arcade game aficionados will be in heaven as Google has enabled people to play Pacman around the streets of Oxford.
1:27pm Tuesday 31st March 2015
TWO people appeared at Oxford Magistrates' Court today following a series of dawn raids by police investigating slavery allegations.
11:22am Tuesday 31st March 2015
Burglars broke into a property in Banbury and stole jewellery including a gold engagement ring.
7:10am Tuesday 31st March 2015
THE manager of a Bangladeshi restaurant given a food hygiene rating of zero out of five has branded the decision unfair.