But these taunts only inflamed the soldiers; the work went on without delay, and the Tyrians were at length alarmed at discovering what a vast undertaking the sea had concealed from them: the bold and level surface appeared above the waves, and approached the city. The inhabitants then came in shoals of barks, to annoy the workmen with darts, javelins, and even fire; and the Greeks were forced to stay their labour to defend themselves from the missiles cast from the swiftly-moving boats. Skins and sails were then had recourse to screen them, and two wooden towers were raised at the head of the bank, to prevent the approach of the enemy. On the other side the Tyrians made a descent upon the shore, out of view of the camp, landed some soldiers, and cut to pieces the men engaged in carrying the stones; some Arabian peasants likewise killed about thirty Macedonians on Mount Libanus, and took several prisoners. These small losses induced Alexander to divide his troops into separate bodies. The besieged were not backward in either exertions, inventions, or stratagems. They took a transport vessel, and filling it with vine-branches and other dry materials, they made a large inclosure near the prow, which they filled with sulphur, pitch, and other combustible matters. In the middle of this inclosure they set up two masts, to each of which they fixed two sailyards, whence hung kettles full of oil and other unctuous substances. To raise the prow, they loaded the latter part of the vessel with stones and sand, and putting it out to sea, by means of their galleys towed it towards the towers. They then ignited this ancient fire-ship, the sailors who were in it leaping into the sea and swimming away. The fire quickly caught the towers and the works at the head of the causeway, and the sails, flapping about, threw oil upon the fire, and increased its violence. To prevent the Macedonians from extinguishing the flames, the Tyrians, from their galleys and boats, kept up a continual discharge of darts and burning torches. Several Macedonians were either shot or burnt to death on the causeway, whilst others, throwing down their arms or tools, leaped into the sea. But as they swam, the Tyrians, preferring to have them as prisoners, maimed their hands with clubs and stones, and, after disabling them, carried them off. At the same time the besieged, in their small boats, beat down the edges of the causeway, tore up the stakes, and burnt the rest of the engines.