The trains, which will have wider doors and full-width gangways, will be formed of two powered driving cars and three powered intermediate cars.

The contract was signed on January 31 by Metrowagonmash general director, Mr Boris Bogatyrev, and Baku Metro chairman, Mr Zaur Guseinov.

The 81-765.B and 81-766.B-type cars are equipped with a new system to alert passengers to the doors opening and closing, as well as HVAC and power outlets. The cars are also designed with advanced noise and heat insulation, while the end cars have areas for wheelchairs and bicycles. The cars will be painted in a custom livery and fitted with a localised passenger information system.

Metrowagonmash and Baku Metro have a history of cooperation stretching back to 1967. Transmashholding shipped three five-car type 81-765.B/766.B metro trains to Baku in 2015, and two type 81-765/766 trains in 2018.