London's new night Tube is set to be extended to the Jubilee Line within weeks of being launched, according to sources.
The all-night service will start on August 19 on the Central and Victoria lines.
It is understood that the night Tube will be extended to the Jubilee Line from September 2.
The new service was originally due to start last autumn but was held up because no agreement was reached with unions.
The night Tube will be extended to other lines later.
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