It is now "highly likely" that Russia carried out the nerve agent attack on Sergei Skripal and daughter Yulia in Salisbury.
Prime Minister Theresa May said it was clear the pair were poisoned by a military-grade nerve agent, the chemical which left Detective Sergeant Nick Bailey seriously ill.
There has been police and military activity in Salisbury all today.
Zizzi's pizzeria in Castle Street and The Mill Pub, off Bridge Street, remain closed along with Salisbury Cemetery in London Road, where Mr Skripal's wife is buried and his son remembered.
Over the weekend, the army removed emergency vehicles from the ambulance station in Odstock Road.
They have been taken to the Churchfields Industrial Estate to check for contamination.
- Click below for Richard Slee's report on how shoppers and businesses in Salisbury are faring a week on
The Prime Minister Theresa May has tonight addressed Parliament stating "this attempted murder in a British city was not just a crime against the Skirpals...it was a reckless act against the United Kingdom"
- Earlier, Fred and Sangeeta spoke to our political correspondent Phil Hornby live from Westminster...click below to hear the latest from Parliament
Theresa May has said Russia was probably involved with the nerve agent attack on Sergei and Yulia Skripal. Fred spoke to the leader of Salisbury City Council, Matthew Dean, about how the world's media has descended on a usually sleepy city.
- Watch Fred's interview below
In Salisbury, a cordons remain as the counter terrorism investigation continues.
An appeal has been made to 500 diners at Zizzi's restaurant and The Mill pub a week ago should wash their clothes in case of contamination. However, officials are reminding the public, the risk remains low.