A mother has told of her terror after a bus carrying schoolchildren crashed near Norwich bus station, injuring up to three people.
St Stephen's roundabout and Queen's Road were closed last night causing major delays.
Officers were called to the collision involving a bus and three other vehicles on Brazen Gate just before 4pm.
The bus also collided with some scaffolding, with up to three people injured.
Police said they could not confirm details of those injuries but they were not thought to be life-threatening injuries at this stage.
The St Stephen's roundabout and Queen's Road were closed while emergency services deal with the crash and motorists are advised to avoid the area and find alternative routes.
It is understood that a disabled woman is among those injured on the bus.
The driver of a car was lying on the ground while paramedics were on scene, and there were reports that the scaffolding of the building could come down.
Sanders Coaches tweeted: 'Delays to ALL services departing Norwich currently due to an accident in Norwich Bus Station. #Apologies #OnOurWay'
Konectbus posted 'Due to an accident at Norwich Bus Station all our services to and from Norwich will be delayed.'
Michelle Allis, of Lowestoft, first heard about the crash when she received a phone call from her two children, aged 12 and 14, who were on the X2 service.
They both attend Notre Dame High School, and told her that many of their friends were on the bus.
'They were quite shocked and hysterical,' said Mrs Allis. 'They managed to get the emergency door open to get out.
'I managed to calm them all down and get them to the bus station to get the next service.
'I was surprised nobody tried to calm them down.'
She said she did not understand how the accident had happened so near to the bus station.
'As a parent it's worrying,' she said. 'Apparently their friend was thrown across the bus.
'It was traumatising to be so far away and not able to do anything.'
A spokesman for First Eastern Counties Buses said: 'We can confirm that one of our vehicles was involved in a crash at around 4pm today in Queens Road, Norwich.
'We are currently working with the police and have launched an internal investigation.
'We apologise for the inconvenience caused.'
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