A French military spokesman in Paris, Col. Thierry Burkhard, was quoted as saying French troops reached the airport at Kidal, in the remote northeast of Mali, where one resident told Reuters that the French forces arrived in four military aircraft and some helicopters.
After punishing French airstrikes, French and Malian troops have launched a lightning campaign on the ground in recent days, entering the northern towns of Gao and Timbuktu without encountering resistance as the Islamist rebels who overran the region last year seem to have melted away to far-flung hide-outs.
But there were suggestions on Wednesday that Kidal, the capital of a desert region of the same name, offered other complexities both because secular Tuareg rebels claim to be in control of it and because a newly formed splinter group that broke with the main forces has its power base there.
The remote province surrounding it may also be offering sanctuary to Islamists who have fled Gao and Timbuktu, news reports said.
In Gao, groups of residents were reported on Tuesday to be hunting down suspected fighters who had not fled ahead of the French-Malian military forces who took control of the town over the weekend. Other residents expressed concern that Gao remained unsafe and was acutely short of food and fuel after a prolonged isolation.
“The city is free, but I think the areas close by are still dangerous,” said Mahamane Touré, a Gao resident reached by telephone from Bamako, the capital. “These guys are out there.”
Mr. Touré, who spent the evening watching soccer on television and listening to music with friends, said that although everyone was enjoying the new freedoms, the legacy of Islamist occupation was evident in the hardship of everyday life.
“The price of gasoline is almost double, and the price of food is very high,” Mr. Touré said. “There are still things in the market, but no one has any money and there is no aid.”
Reporters and photographers in Timbuktu, the storied desert oasis farther north that the French-Malian forces secured on Monday, saw looters pillaging shops and other businesses, with some saying the merchants were mainly Arabs, Mauritanians and Algerians who had supported the Islamist radicals who summarily executed, stoned and mutilated people they suspected of being nonbelievers during their 10-month occupation.
Alex Crawford, a television correspondent for Britain’s Sky News, said, “This is months and months of frustration and repression finally erupting.”
The rapidly shifting developments came less than three weeks into the military effort by France, the former colonial power in Mali, to reverse the spread of Islamist extremism in the northern half of the desert country, which had threatened to engulf the south, topple the weak central government and destabilize a vast area of northern Africa.
French troops, helicopters and warplanes began arriving here at the Malian government’s invitation on Jan. 11. Since then other West African countries have started to send troops. Britain is preparing to send more than 300 military trainers, and the United States is providing aerial cargo and refueling help.
In Washington, Pentagon officials said that as of Tuesday 17 sorties by United States Air Force C-17 cargo jets had flown 500 French troops and 390 tons of equipment into Bamako. In addition, there has been one aerial refueling operation by an American KC-135 tanker aircraft, which provided 33,000 pounds of fuel to several French warplanes, the officials said.
At the same time, a meeting of international donors was getting under way on Tuesday in Addis Ababa, Ethiopia, as part of an effort to provide more than $450 million in long-term financing for the military intervention in Mali.
The French-led effort has met surprisingly little resistance from the array of Islamist militias that occupied the northern part of Mali, an area about twice the size of Germany, in the spring of 2012 in the midst of a national political crisis.
It remains unclear how long the foreign military occupation will last. Most of the Islamist fighters have melted into the desert and could be regrouping to fight again.
In a bid to consolidate the gains, troops from Mali and neighboring Niger arrived Tuesday in the small town of Ansongo, about 50 miles south of Gao, one day after President François Hollande of France urged African countries to take a more prominent role in the operations.
Just as in Gao two days before, residents filled the streets there to greet the arrival of the African troops as they toured Ansongo and its environs.
“Everyone is very, very, very happy,” said Ibrahim Haidara, an Ansongo resident reached by phone. “They chanted, ‘Vive la France!’ and ‘Long live African armies!’ ”
But like his counterparts in Gao, he worried that the fighters might not have gone very far.
“They are in the bush. They are hiding,” he said. “One must be careful.”
Peter Tinti reported from Bamako, and Rick Gladstone from New York. Scott Sayare contributed reporting from Paris, John F. Burns and Alan Cowell from London, and Elisabeth Bumiller from Washington.
