In the early hours of Sunday October 7, just after midnight, Egyptian infantry, now with tank support, advanced to expand their bridgeheads. Israeli armored formations had experienced heavy losses in trying repeatedly to reach the Bar Lev Line and were disorganized and confused. Many Israeli units, however, stubbornly resisted the Egyptian advance. Twice during the night of October 6 to October 7, groups of tanks and infantry penetrated the bridgeheads to reach the canal line, where they managed to damage two bridges and destroy a number of ferries. Surrounded on all sides, however, these units were soon destroyed. Before sunrise the bridgeheads had reached a depth of , and the attacking Israeli units retreated. With sufficient numbers of armor finally on the east bank, reinforcements of infantry began to cross. Dawn on October 7 saw a total of 50,000 men (around 10,000 to each bridgehead) and 400 Egyptian tanks occupying five bridgeheads in the Sinai across the Suez Canal. Egyptian forces reorganised and entrenched themselves in anticipation of Israeli counterattacks.