Barrow said the inauguration was going to take place as scheduled on Thursday in the Senegalese capital, Dakar.
The agreement reached by Congolese political parties aims to have transitional government in place by March next year
President John Mahama had appealed for calm and told his supporters he would respect the outcome of the vote whether he won or lost.
Anglophones say French is being imposed in schools and court rooms in English-speaking regions.
The sham embassy was housed in a run-down, pink two-storey building with a corrugated iron roof and flew a US flag outside.
The opposition relies on messaging applications and texts to organise mobile rallies that have seen roads blocked repeatedly over the last week.
Aisha Buhari, Nigeria's first lady says she cannot back her husband's re-election campaign because of leadership disarray.
The North African country - which has over nine million Facebook users - aims to cure compulsive users of technology through its rehab programme.
The world's third worst jailer of journalists detains notable critic after days of deadly protests in Oromia and Amhara.
Ahmad al-Faqi al-Mahdi is the first person to be convicted of cultural destruction as a war crime by the International Criminal Court.