The health workers were killed when Mai-Mai fighters attacked a centre run by the United Nations health agency overnight in Biakato area of the Democratic Republic of Congo, local officials say.
UN mission MONUSCO spokesman said a "rapid intervention force" of peacekeepers was dispatched to the area in the morning.
Three of the city’s 26 districts were especially hit, causing widespread chaos and damage.
Residents reacted in anger after suspected rebels killed eight people in an overnight raid. Dozens of civilians have been killed in massacres since the Congolese army launched an offensive against rebels from the Allied Democratic Forces
The airline, local company Busy Bee, said there were 16 passengers and two crew members on board the plane that crashed into a residential neighbourhood in the Democratic Republic of Congo.
The latest Ebola outbreak to hit Democratic Republic of Congo has killed more than 1,700 people since August last year.
Officials blame the ADF militia group for twin overnight attacks in North Kivu province of the Democratic Republic of Congo.
Restrictions on travelling to the Democratic Republic of Congo would "impede our ability to effectively control" Ebola virus, Dr John N Nkengasong, a top health officer at African Union said.
The ongoing Ebola outbreak in the Democratic Republic of Congo has killed more than 1,600 people since August.
Democratic Republic of Congo recorded 2,382 cases of Ebola, of which 1,606 were fatal, the Health Ministry says.
Of 2,239 recorded cases, 1,506 people have died in a nearly 10-month-old outbreak in the Democratic Republic of Congo, the health ministry says.
The overnight attack blamed on rebels from the Allied Democratic Forces group comes as the deadly Ebola outbreak in the east surpasses 2,000 cases.
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