At least three people have been killed, including one UN peacekeeper, during an attack in Mali a security source has told Reuters.
Unknown attackers fired rockets and shells towards the north town of Kidal in a dawn attack.
The source, who asked for anonymity, said he counted more than 40 weapons fired at the town between in an hour.
He said the weapons appeared to be aimed at a base for a UN peacekeeping force known as MINUSMA.
One French citizen was among those killed in a Mali restaurant attack, the French Foreign Minster Laurent Fabius has confirmed.
"I condemn this odious and cowardly act that has caused the death of several people among them a French citizen," Fabius said in a statement.
He said the attack strengthened France's resolve to "fight terrorism in all its forms". France has more than 3,000 soldiers in West Africa as part of a counter-insurgency force against al Qaeda-linked militants.
A senior intelligence official said gunmen attacked a restaurant in the capital of Mali and killed four people including two Europeans and two Malians on Saturday, adding that two people have been arrested.
French forces wrested control of Mali's desert north from separatist rebels and militants linked to al Qaeda two years ago but the insurgents continue to mount attacks.
Officials in Mali are monitoring 310 people in a bid to help limit the spread of the Ebola, after another case of the deadly virus was confirmed inside the country.
Officially five people have died on the virus in the country.
The deaths are linked to a 70-year-old imam who was brought to the country's capital Bamako, from Guinea, where the regional Ebola epidemic first began.
The World Health Organisation says more than 5,400 people have died in the current outbreak, mostly in Guinea, Liberia and Sierra Leone.
A new case of Ebola has been recorded today, in Mali's capital Bamako.
The country's health ministry confirmed that the friend of a nurse who died from Ebola earlier this month has now tested positive for the disease.
To date 5,459 people have died in the current Ebola outbreak with Guinea, Sierra Leone and Liberia accounting for all but 15 of the deaths.
A two-year-girl who was Mali's first Ebola case has died, Reuters has reported, citing a health official.
The girl had been receiving treatment at a hospital in the country after testing positive for the virus upon arriving from outbreak-hit Guinea.
A landmine explosion in northern Mali has killed four United Nations peacekeepers, a spokesperson for the UN mission in Mali said.
Another 15 people have been wounded when the explosion struck a convoy they were travelling in.
"It was a convoy that left Kidal and was heading to Aguelhok that hit a mine," Olivier Salgado told Reuters.
Six Malian government officials and two civilians were murdered during an assault by Tuareg separatist rebels on a regional governor's office in the northern town of Kidal, the country's United Nations peacekeeping mission said on Sunday.
Albert Koenders, the head of the UN mission, said in a statement: "This barbaric crime is totally unacceptable and those responsible must answer for their actions."
"An inquiry must be carried out quickly in order to verify the facts and bring the responsible parties to justice."
Mali is at war with armed Tuareg separatists, the country's Prime Minister said after officials reported the rebels had attacked a governor's office in the northern town of Kidal and abducted around 30 civil servants.
"Taking into account this declaration of war, the Republic of Mali is henceforth at war. We are going to formulate the appropriate response to the situation," PM Moussa Mara told Reuters.
Around 30 civil servants have been abducted by separatists in Mali's northern town of Kidal during fighting that also wounded 23 government soldiers, the governor of the region has said.
"Some 30 of our civil servants were kidnapped by the assailants who attacked the governor's office. There were 23 wounded, including three seriously who were evacuated by helicopter," Adama Kamissoko told the Reuters news agency.