The Christian commanders, after a failed attack by Mahdia's defenders, order four galleys to patrol the area during the night to prevent further attacks.

Several others are also sent to Sicily carrying the wounded and ill soldiers and requests for replacements and ammunition, which are provided from Milan, Florence, Lucca and Genoa.

The siege engineers, pending their receipt of reinforcements and munitions,focus on the weakest points of Mahdia's defenses.

García Álvarez de Toledo, 4th Marquis of Villafranca, suggests bombing the walls from the sea, forming a gun battery on two galleys previously demasted and united to each other with hangers and planks.

Nine pieces of artillery are settled on the platform, which is protected by shields and parapet, prior to anchoring the galleys off the walls.

The guns of García Álvarez de Toledo's galleys, along with the land batteries and of the other naval artillery, open fire on the city on September 8.

The bombardment, which does not end until two days later, opens large gaps in Mahdia's defenses.

Then, at the orders of their officers, the Spanish soldiers storm the fortifications in three different points.

An attack is repulsed, but the other two overwhelm the defenders and surprise the remaining Ottoman troops from their rear

The last defenders resist inside the towers for a while, but they are finally defeated.

Governor Hesar is captured, and about seven thousand of Mahdia’s soldiers and civilians are killed or captured.