On July 19, 1943, Rome was bombed again, more heavily, by 521 Allied planes, with three targets, causing thousands of civilian casualties (estimates range between 1,600 and 3,200 victims)[8]. After the raid, Pius XII, along with Msgr. Montini (the future Pope Paul VI), travelled to the Basilica of Saint Lawrence outside the Walls, which had been badly damaged, and distributed ₤ 2 million to the crowds.[9][10] Between 11 a.m. and 12 noon, 150 Allied B-17 Flying Fortresses attacked the San Lorenzo freight yard and steel factory. In the afternoon, the second target was the "Scalo del Littorio" on the northern side of Rome.