President Francois Hollande says more French troops are to be deployed in Mali to support the 750 in the country countering an Islamist insurgency.
Mr Hollande said new air strikes overnight had "achieved their goal". One target was the town of Diabaly, which rebels entered on Monday.
West African military chiefs will meet in Mali on Tuesday to discuss how an alliance with the French will work.
France began its intervention on Friday to halt the Islamists' advance south.