eight half-tracks, and killing 20 soldiers. Due to the Egyptians' retreat, the Israeli High Command decided not to pursue the Egyptian units but rather to bypass and destroy them in the mountainous passes of West Sinai. Therefore, in the following two days (6 and 7 June), all three Israeli divisions (Sharon and Tal were reinforced by an armoured brigade each) rushed westwards and reached the passes. Sharon's division first went southward then westward, via An-Nakhl, to Mitla Pass with air support. It was joined there by parts of Yoffe's division, while its other units blocked the Gidi Pass. These passes became killing grounds for the Egyptians, who ran right into waiting Israeli positions and suffered heavy losses in both soldiers and vehicles. According to Egyptian diplomat Mahmoud Riad, 10,000 men were killed in one day alone, and many others died from hunger and thirst. Tal's units stopped at various points to the length of the Suez Canal. Israel's blocking action was partially successful. Only the Gidi pass was captured before the Egyptians approached it, but at other places, Egyptian units managed to pass through and cross the canal to safety. Due to the haste of the Egyptian retreat, soldiers often abandoned weapons, military equipment, and hundreds of vehicles. Many Egyptian soldiers were cut off from their units had to walk about on foot before reaching the Suez Canal with limited supplies of food and water and were exposed to intense heat. Thousands of soldiers died as a result. Many Egyptian soldiers chose instead to surrender to the Israelis. However, the Israelis eventually exceeded their capabilities to provide for prisoners. As a result, they began directing soldiers towards the Suez Canal and only imprisoned high-ranking officers, who were expected to be exchanged for captured Israeli pilots. According to some accounts, during the Egyptian retreat from the Sinai, a unit of Soviet Marines based on a Soviet warship in Port Said at the time came ashore and attempted to cross the Suez Canal eastward. The Soviet force was reportedly decimated by an Israeli air attack and lost 17 dead and 34 wounded. Among the wounded was the commander, Lt. Col. Victor Shevchenko. During the offensive, the Israeli Navy landed six combat divers from the Shayetet 13 naval commando unit to infiltrate Alexandria harbour. The divers sank an Egyptian minesweeper before being taken prisoner. Shayetet 13 commandos also infiltrated Port Said harbour, but