African Union (AU) sent today a health team to the Democratic Republic of Congo (DRC) to monitor the situation and the country " s required level of support to stop Ebola outbreak.
It was the first registered urban case of the deadly virus, with the city having a population of some 1 million people.
Confirmed, probable and suspected cases of Ebola have been recorded in three health zones of Congo's Equateur province, the World Health Organisation (WHO) said.
"Five thousand four hundred doses of vaccine arrived from Geneva this morning" said health ministry spokeswoman Jessica Ilunga.
The worst-ever Ebola outbreak started in December 2013 in southern Guinea before spreading to neighbouring west African countries Liberia and Sierra Leone, killing more than 11,300 people out of almost 29,000 registered cases. They would be kept in Kinshasa until a refrigerated transportation chain could be guaranteed.
The vaccine from pharmaceutical firm Merck is unlicensed but was effective in limited trials during the Ebola outbreak in West Africa.
Some 11,300 people died of Ebola in Guinea, Liberia and Sierra Leone between 2014 and 2016.