Some continue to celebrate; others are deeply unhappy.
Tension remains high in Ivory Coast over disputed election results, with the country still not sure who their leader is after a presidential run-off.
The election commission declared opposition candidate Alassane Ouattara the provisional winner.
Addressing his supporters, Outarra said his goal was to unite the country.
But the Constitutional Council, which must ratify the results, said the commission’s announcement was illegal, as a deadline for declaring the results had passed.
The council, whose chief is a close ally of incumbent President Laurent Gbagbo, is expected to make a ruling on the results later today.
After the election commission’s announcement, the country’s borders were sealed off and foreign media were blocked from broadcasting.
Post-election violence has been condemned by the international community. Four people were reportedly shot dead by security forces at an opposition party office, and 12 other deaths have been reported in the capital.
Gbagbo’s party says some of its members have been attacked by Outarra supporters.
Foreign diplomats are rushing to break the impasse over fears of further violence.