A number of properties were evacuated and a 100m cordon put in place following the discovery of "potentially hazardous chemicals" at a business near Derby city centre on Tuesday morning
The cordon has now been removed and people have been allowed to return after the chemicals were removed
Officers have said the incident is not a criminal matter
Parents were asked to collect pupils early from a nearby school, with one telling the BBC it was "scary"
Thank you for joining us for our live updates on the cordon put in place after potentially hazardous chemicals were found at a business in Derby city centre.
Keep following the BBC News website for the latest on this story.
Matt Weigold
BBC Radio Derby
Here's how Midland Road looks now following the lifting of the cordon put in place earlier this afternoon.
Loveth Gbenekama was at the school gates to pick up her son.
She said the school alerted parents via an app used to communicate with teachers that "there had been an accident" close to the premises.
"They didn't know at the time how long the cordon was going to be in place," she told the BBC.
"Initially I was a bit scared because I didn't know what was going on but the school did communicate further.
"My son was a bit surprised and did ask why I was here so early."
Derbyshire Police said: "A precautionary cordon and road closures that were in place earlier today have now been lifted.
"The potentially hazardous chemicals found at the scene have been safely taken away from the area.
"Members of the public who were earlier evacuated from the scene have now been allowed to return."
Steve Beech
BBC News
Officers are now taking down the cordon that has been in place this afternoon.
East Midlands Ambulance Service has just sent us this single-line statement in relation to the alert.
It said: “We received a call at 12.59pm today, Tuesday 21 April to Midland Road, Derby to support police colleagues. We sent a paramedic in an ambulance car.”
Matt Weigold
BBC Radio Derby
I'm stood outside Castleward Spencer Academy primary school close to the cordon.
Parents are now coming to collect their children because the school has put out a notice for them to do so.
Close by, Royal Mail workers have been told to evacuate the delivery office on Midland Road.
Matt Weigold
BBC Radio Derby
I'm at the scene and can see a police cordon across Midland Road at the top of Wellington Street and Carrington Street, near the Royal Mail centre.
There are dozens of postal workers unable to get into the building, waiting outside for an update from the police.
Traffic is being diverted into the surrounding streets with four or five police cars in attendance.
While the cordon has been put in place and properties are being evacuated, we do not have any information about what the "potentially hazardous chemicals" are.
Police have also not yet said exactly where they were found.
The force said: "The substances were found during routine work at a business in the area and there are no criminal matters in relation to them."
Quote MessageWe are supporting Derbyshire Constabulary in the response to this incident. Road closures are in place so please avoid the area and find alternative routes.
Derbyshire Fire and Rescue Service
Police have urged members of the public to avoid the area while emergency services respond.
The force said it was working with Derby City Council, East Midlands Ambulance Service, Derbyshire Fire and Rescue Service and the Army's Explosive Ordnance Disposal Team as part of its response.
Derbyshire Police said officers were also liaising with staff at Castleward Spencer Academy, part of which is within the cordon.
Staff and students have been advised to "stay inside for the time being".
A number of roads are affected by the cordon.
They are:
A 100m cordon is in place near Derby city centre after "potentially hazardous chemicals" were found at a business premises in Midland Road.
Derbyshire Police said officers were called to the scene at 10:30 BST on Tuesday.
A number of roads are within the cordon and properties are being evacuated.
