Ghana and Togo have started an historic initiative to replace fast-disappearing border markers in the face of rising insecurity and cross-border crimes in West Africa.
Experts from the two countries are expected to construct 50 new international boundary pillars along a 40km (25-mile) stretch.
Officials in Ghana say the old ones have either eroded or been removed by vandals.
The century-old markers were last repaired in the 1970s.
The authorities say the latest move is to stop border encroachment and could also help address Ghana’s longstanding maritime dispute with Togo in the Gulf of Guinea.
But some locals fear the exercise could put them on the wrong side of the border.
In some parts communities from both countries mix together for social and economic activities.
But there have been communal tensions too in some areas.