The four ministers -- Albania's Lulzim Basha, Bulgaria's Petar Mutafchiev, Macedonia's Xhemali Mehazi, and Italy's Pietro Lunardi -- agreed in the Bulgarian city of Plovdiv to fill in the existing gaps in a potential 1,300-kilometer network of highways, railways, and ports.
The project, which also includes Greece and Turkey, was launched in 1991 but a lack of funding has resulted in little progress being made.
(AP)