The poisoned couple were probably exposed to the nerve agent from "an object in a contained space".
Five areas in Salisbury and Amesbury are cordoned off as police continue their investigation.
People in Salisbury react to the news of another Novichok poisoning linked to the city.
The home secretary calls on Russia to explain the Novichok poisoning after two people were exposed to it.
What are the nerve agents the Wiltshire couple were exposed to and how dangerous are they?
A report into the poor performance of Network Rail and South Western Railway reveals poor planning.
Royal Tank Regiment corporals Matthew Hatfield and Darren Neilson were killed by the explosion.
A friend of one of the Amesbury poisoning victims describes the symptoms he witnessed.
The couple were exposed to Novichok, the same substance as ex-Russian spy Sergei Skripal say police.
Residents express concern after a man and woman were exposed to an unknown substance in Amesbury.
The pair collapsed ten miles from Salisbury, where ex-Russian spy Sergei Skripal was poisoned.
The explosion that killed two soldiers had never happened before, an inquest hears.
The number of days lost in Avon and Somerset rises 450%, mostly due to stress and depression.
Norman Sharp from Trowbridge holds the record for the longest-lasting hip replacement.
League Two club Swindon Town sign Brighton midfielder Steven Alzate on a season-long loan.
Royal Tank Regiment corporals Matthew Hatfield, 27 and Darren Neilson, 31, died after the tank "exploded".
More than 3,000 services have been cut back or withdrawn, the Campaign for Better Transport says.
The prime minister and defence secretary both spoke at the main event in Llandudno, Wales.
The bird was carved into Beacon Hill on Salisbury Plain in 1919 by New Zealand soldiers.
Fifteen airfields across the UK are set to be sold off over the next six years, mainly for housing.