Ambulances cruised this Cairo suburb seeking blood donors Thursday after a train carrying laborers plowed into an express coach slowed by heavy fog. The collision sent cars hurtling into dozens of track-side shops and killed at least 75 people.

“There was screaming, people jumping from the train’s windows … and lots of blood,” said Samia Mohammed, 13. She witnessed the wreck.

Hours after the crash in Badrshein, 15 miles south of Cairo, dead bodies remained stuck in the tangled wreckage and the sound of wailing relatives pierced the air. Four dead bodies could be seen trapped inside one overturned car.

At least 76 people were injured. Three cars of one train were thrown atop the others and several more careened into wooden shops lining the tracks, destroying or damaging 40 of them. Five train cars were destroyed, said Lt. Gen. Mustafa Sabri, a civil defense official.

Police Brig. Mohammed el-Mahdi put the toll at 75 dead and 76 injured. He expected the death toll to rise as rescuers find more bodies in the wreckage.