The advance along the coastal road was preceded by heavy artillery bombardment and airstrikes, but quickly became bogged down and was soon behind schedule. The narrowness of the road forced a slow advance, and Israeli armor became stuck in a large traffic jam. Several armored vehicles were knocked out by PLO fighters with anti-tank weaponry hiding in three groves along the road. One of the lead battalions, which was supposed to bypass Tyre and establish a blocking position to the north of the city, made a wrong turn and found itself in the center of the city, where it was ambushed. At eight in the evening the force finally crossed the Litani River and headed towards Sidon. In the central sector, the mission went as planned. The two Israeli divisions bypassed Beaufort Castle on both sides. Although an order to postpone the capture of Beaufort Castle was issued, it did not reach Israeli forces in time to prevent the operation, and Israeli troops of the Golani Brigade captured the castle in the fiercely-fought Battle of the Beaufort. The road junction at Nabatieh was also secured by the end of the first day. Meanwhile, the easternmost force penetrated into the Bekaa Valley and bore down on the Syrian positions. One division bypassed Mount Hermon via a road bulldozed by Israeli military engineers and cleared the town of Hasbaiya before swinging right and advancing towards Rachaiya. Though Israeli forces halted in the floor of the valley, they were flanking Syrian forces from the east and west. The Syrians put up minimal resistance and conducted some harassing artillery fire. By the end of the first day, the operation had gone almost entirely according to plan, though the advance along the coastal road was behind schedule.