A spokesperson for newly-inaugurated president Adama Barrow, Halifa Sallah, confirmed that the ex-president had been allowed to leave with all his property.
President of Nigeria, Muhammadu Buhari, headed the three-nation delegation to talk to Jammeh.
Chief Justice Emmanuel Fagbenle said that the court can only hear the case once there is a full bench, and that the extra judges needed would only be available in May or November.
Shehu said that the Ecowas leaders would discuss ways in which to resolve the situation in Gambia, where incumbent President Yahya Jammeh had rejected the December 1 election results, after initially accepting them.
The announcement was made via Facebook by the chief, Alieu Momar Njai’s son Momodou on Tuesday evening.
This is the first visible sign of a crackdown on the media from the Gambian strongman.
In his new year’s message to the country, Jammeh rejected Ecowas’ demand, calling it “illegal” and a violation of the group’s principle not to interfere in the internal affairs of member states.
The outgoing president, who has been in power since he staged a successful coup in 1994, had initially accepted the results of the December 1 elections.
Jammeh initially accepted defeat, even phoning his opponent, Adama Barrow, congratulating him on the win and promising a peaceful handover.
The outgoing president, however, changed his mind after it came to light that one voting district had irregularities in the tallying of the votes.