The UK's East London line extension to West Croydon in the south of the capital has begun operations.
Construction of the line is estimated to have cost £1bn ($1.4bn) with an additional £500m ($723m) spent on acquiring 57 trains.
The 14-mile extension is expected to run to Dalston in north London and will be part of the city's tube network, according to thisiscroydontoday.co.uk.
Related links
London Underground Major Regeneration Scheme
