A number of changes to bus services in Norwich will be introduced later this month.

The changes, according to First Norfolk & Suffolk, are due to an ongoing review of demand, usage, passenger suggestions and their partnership with local stakeholders.

From September 17 there will be extra buses on the Norwich network and brand new routes across the city - but some stops will be pulled.

Orange Line (21/22)

Extra buses will run on the route in the evenings from Monday to Saturday, with buses calling at the University of East Anglia (UEA) and the Norfolk and Norwich University Hospital up to every 30 minutes.

But due to low passenger numbers, First will no longer run the two Monday to Friday journeys to and from Spixworth Road. Passengers wishing to use this route are advised to use Sanders Coaches route 210.

Red Line (23/24)

Services 23, 23A and 23B from Heartsease to Costessey will leave Sale Road around two minutes earlier to allow more time to travel around the Heartsease Estate.

Bus services 24 and 24A from Thorpe St Andrew to Queens Hills will also leave two minutes earlier to allow to travel between there and the Heartsease roundabout.

Blue Line (25/26)

On the 25 line from the UEA to Norwich Rail Station buses will run more frequently Monday to Friday to coincide with the new University year. Buses will also run more often on Sundays.

But due to lack of passengers the service will no longer operate via Carrow Road and Norwich City's football ground and will serve both the Rail Station and Riverside. Carrow Road will continue to be served by bus service 26.

On the 26 line from the Norfolk and Norwich University Hospital to the UEA and Riverside, buses will be running more often on Sundays but will no longer run from the Norfolk and Norwich University Hospital on this day.

Yellow Line (28/29)

First will be changing the times of the early morning buses into the city on weekdays and all journeys numbered 28A will be renumbered as 28 and will follow the normal daytime route.

Purple Line (36,37,38)

There will be new 36 line services to and from Horsford and the city centre on Sundays, with six buses across the day rather than the current two.

On the 37 line from Hellesdon to Mulbarton there will be a new Sunday service, numbered 37B, between the city centre and Mulbarton, travelling via Lakenham with five journeys in both directions.

And on the 38 line from Ives Road and Norwich to Long Stratton, there will be changes to the times of afternoon peak journeys to Ives Road with new later journeys on Mondays to Fridays leaving the city centre at 6.20pm and 6.55pm.

• For more information on the changes visit the First website.