The European Commission is to invest more than €432 million (£375.8m) in the Warsaw Metro system.
The funding will extend the city’s ‘Metro Line 2’ with six new stations to better connect the eastern part of the city with the western side.
The line was originally opened in 2015 with financial support from the EU after it was calculated it would save around 200,000 tonnes of Carbon Dioxide a year by taking cars off the capital’s congested and polluted roads.
The investment will also finance a new technical control terminal, 13 additional energy efficient trains and preparatory work for further expansion in the future.
It is in line with the EU’s low-emission mobility strategy to improve the sustainability of transport networks and the quality of life for the commuters and residents that use them.
It was delivered as part of the Cohesion Fund, which supports member states whose gross national income per inhabitant is less than 90% of the EU average and thereby helps to reduce economic and social disparities.
Corina Cretu, Commissioner for Regional Policy said: “Sustainable urban mobility is crucial to the quality of life in our cities.
“By investing in the extension of the metro in Warsaw, we encourage people to change their habits, leave their cars and enjoy access to a fast and modern public transport system.”