Serbia's official news agency Tanjug reports that the tender for design and construction of tunnel number 4 on the Stalać - Đunis railway line near Ćićevac, on railway Corridor 10 can be bidded until December 29

It is a one tube, two-track tunnel and 3.3 kilometers long. Construction start date will be around June 2022.

http://www.tanjug.rs/full-view1.aspx?izb=701755