Chabane Arby, a 23-year-old student from Timbuktu, said the planes make a growling sound overhead. "When they hear them, the Islamists come out and start shooting into the sky," he said.
Aboubacrine Aidarra, another resident of Timbuktu, said the planes circle overhead both day and night. "I have a friend who said he recently saw six at one time, circling overhead. ... They are planes that fly at high altitudes. But they make a big sound. "
Callimachi reported from Bamako, Mali.
Dozier can be followed on Twitter (at)kimberlydozier.
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