The assault indicates that the radical Islamists remain entrenched and able to attack despite the thousands of French troops who have liberated most of northern Mali's towns from control by the extremists.
Reached by telephone, Gao Mayor Sadou Diallo said the Islamic fighters launched their attack inside the Quatrieme Quartier, or Fourth District, a neighborhood inside the city which is divided into a numbered grid. The mayor said Malian forces engaged the fighters and they retreated, but a second column of Islamists then attacked from across the Niger River. He said that by evening the situation appeared to be under control, though residents said they still heard shooting.
"There was heavy gunfire. The situation is under control now. The Islamists entered via Quatrieme Quartier, and the army went to meet them and was able to push them back," said Diallo. "There is another group that entered via the river, but they too were pushed back. It's under control," he repeated.
For nearly 10 months, Gao was occupied by the Movement for the Oneness of Jihad in West Africa, or MUJAO, one of three al-Qaida-linked groups which invaded northern Mali a year ago. MUJAO was among the most brutal, amputating the limbs of so many accused thieves that the public place where they meted out their version of justice became known as "Shariah Square.
The euphoria following the city's liberation was short-lived, however. Gao was the first town to be attacked by a suicide bomber on Feb. 8, a style of attack that was previously unknown in Mali and which has now been repeated in several other northern cities. Also in February, the city was twice attacked by extremists, who again crossed the river from villages that have long practiced the Wahabi form of Islam, a far stricter interpretation of the religion than what is practiced in most of Mali. Extra French troops have been brought in to reinforce the city's defenses, but the frequency of the attacks has many worried that extremism has taken root in Gao's soil.