Zonguldak-Filyos Regional

The Zonguldak-Filyos Regional () is a newly implemented regional rail service running along the Black Sea coast between Zonguldak and Filyos, with 8 intermediate stations. The service brought back passenger rail operations in Zonguldak that ended in 2010, when the Karaelmas Express was shortened between Karabük and Çankırı.