READ MORE: Gambia's political transition begins after election shock

He also commended Gambia's out-going president Yahya Jammeh for "graciously conceding defeat, thereby laying to rest any lingering suspicion and anxiety about the fate of Gambia in the aftermath of the elections."

Mr Barrow pulled off a stunning victory in Gambia, winning 54.54 percent (263,515 votes) while Jammeh took 36.66 percent (212,099) and third party candidate Mama Kandeh 102,969 votes (17.80 percent).

Hundreds poured onto the streets Friday in a spontaneous outpouring of joy as President Yahya Jammeh's 22-year rule ended, ecstatically welcoming a new political era.

They piled on top of cars, drummed and weaved flags coloured the grey of the opposition coalition.

Relations between Ghana and The Gambia was at it all time low in 2008 following the death and disappearance of of some Ghanaian nationals in Gambia in 2005.

Akufo-Addo was then Ghana's Foreign Minister and he was heavily criticised by then candidate John Evans Atta Mills in the led up to the 2008 elections for doing little to hold the Gambia government responsible.

READ MORE:Heavy security as opposition takes Banjul in Gambia vote

Mr Jammeh's denied the role of Gambia's security forces in the death of the Ghanaians.

Relations between the two bounced back after Jammeh accepted blame for the death of Ghanaian nationals and paid some compensation to the bereaved families.