A suicide bomber killed at least two Chadian soldiers in Mali Friday, military sources said, in a deadly demonstration of the troubled nation's ongoing security crisis days after France began withdrawing its troops.
The soldiers were shopping in the northern city of Kidal when an Islamist bomber struck, according to Malian and Chadian sources who gave a provisional toll of two soldiers killed and four wounded.
"The centre of Kidal is now sealed off. This is an Islamist attack against the Chadian troops," said one regional security source.
"There are three dead, the bomber and two Chadian soldiers," the source told AFP, cautioning that the toll was provisionary.
Located 1,500 kilometres (930 miles) northeast of Bamako, Kidal houses bases for the French and Chadian armies who provide security while the city is run by Tuareg rebels from the National Movement for the Liberation of Azawad (MNLA).
It is the chief town of a region of the same name that includes the Ifoghas mountains, where French and Chadian soldiers have spent several weeks hunting and engaging entrenched Islamist fighters.
The city has already seen two suicide bombings, on February 21 and 26, the first targeting French military and killing the driver of the car bomb and the second killing seven MNLA members manning a checkpoint.
The attack came at the end of a week in which French troops began an early withdrawal from Mali three months after ousting armed Islamists from the country's north.
Paris pulled out 100 soldiers ahead of schedule on Monday as part of a phased withdrawal of the majority of its 4,000 troops.
France has said it will leave 2,000 soldiers on the ground throughout the summer, reducing its presence by the end of the year to a "support force" of 1,000 fighting alongside a UN-mandated army of some 11,000 troops.
But the attack will turn the spotlight on Mali's poorly paid, ill-equipped and badly organised military which fell apart last year in the face of an uprising by Tuareg rebels and then an Islamist occupation of the north.
The cities of Gao, Timbuktu and Kidal fell in March 2012 to Tuareg rebels who took advantage of the chaos following a coup to declare independence for the entire desert north before losing control to armed Islamists insurgents.
The extremists terrorised locals with amputations and executions performed under their brutal interpretation of Islamic sharia law, drawing global condemnation and prompting France's surprise intervention.
While French-led troops have inflicted severe losses on the Islamists, driving them from Mali's northern cities, soldiers are still battling significant pockets of resistance around Gao.
One thousand French soldiers have been conducting an operation to destroy the Islamist militants' logistics infrastructure in a valley north of Gao since Sunday while an EU mission is training Malian soldiers to improve their chances of containing the insurgents.
Mali's Prime Minister Diango Cissoko called on France Thursday to keep a permanent military presence in Mali.