TEHRAN -- Iran unveiled a locomotive which runs on a domestically-made heavy diesel engine on March 29.

The locomotive will soon join the national railway fleet, the Mehr News Agency reported.
First Vice-President Mohammad-Reza Rahimi attended the unveiling ceremony.
Iran currently stands among the top 12 countries in the world which possess the technology to produce heavy diesel engines.
Iran will soon start to mass produce the newly-unveiled diesel locomotive engines to renovate its rail fleet.