MTR 8001 heads another MTR diesel locomotive while passing Ma Liu Shui, Hong Kong, on December 14, 2015. Picture by Train Tang.

We don't receive many images of these locomotives, which are perhaps the least known representatives of their type, but this time we received three at once from Hong Kong. Built in 2003, the locomotives are still going strong in the Far East.

MTR 8002 and an unidentified ER20 near Tai Wo, Hong Kong, on February 25, 2016. Picture by Train Tang.

MTR 8004 and an unidentified MTR diesel locomotive pass through Sheung Shui, Hong Kong, on March 14, 2016. Picture by Train Tang.