A burst water main in Norwich is causing traffic chaos as it forces roads to close.

Norwich Evening News: Traffic queues around Bethel Street, St Giles Street and St Peters Street due to the burst water main on Exchange Street. Picture : ANTONY KELLYTraffic queues around Bethel Street, St Giles Street and St Peters Street due to the burst water main on Exchange Street. Picture : ANTONY KELLY (Image: archant 2017)

The pipe burst in Exchange Street causing it, and Gaol Hill to close from around 2.45pm yesterday.

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Norwich Evening News: Exchange Street closed due to water main leak. Picture : ANTONY KELLYExchange Street closed due to water main leak. Picture : ANTONY KELLY (Image: archant 2017)

The roads are expected to remained closed until the early hours of tomorrow morning while work is completed.

Traffic has been building up in the city as motorists are diverted from St. Giles back up Bethel Street causing jams around the inner ring road.

https://twitter.com/FirstNorwich/status/902869367762898944

On the city's buses, First Group tweeted that services are running with a delay of 40 minutes this afternoon.

A spokesman from Anglian Water said: 'Repair to the leak was completed over night with our engineers working until around 4am.

https://twitter.com/sufnoftravel/status/902884167066816512

'We are hoping to have work completed by the end of the day or the early hours of tomorrow morning.'

The leak has been sealed but due to the size of the excavation to get to it the tarmac must be relaid.

https://twitter.com/sufnoftravel/status/902885585953705984

The spokesman continued: 'Anglian Water apologises for any inconvenience caused by the works.'

Norwich Evening News: Exchange Street closed due to water main leak. Picture : ANTONY KELLYExchange Street closed due to water main leak. Picture : ANTONY KELLY (Image: archant 2017)

Norwich Evening News: Exchange Street closed due to water main leak. Picture : ANTONY KELLYExchange Street closed due to water main leak. Picture : ANTONY KELLY (Image: archant 2017)

Norwich Evening News: Exchange Street closed due to water main leak. Picture : ANTONY KELLYExchange Street closed due to water main leak. Picture : ANTONY KELLY (Image: archant 2017)