Dozens of Bedouin tribesmen have been detained on suspicion they supplied the explosives for car bombings at two Egyptian resorts that killed at least 32 people, most of them Israelis, officials said Saturday. Israel's counter-terrorism chief, meanwhile, said Israeli tourists in Egypt are still in danger and urged them return home immediately. At the Taba Hilton, scene of the deadliest blast, investigators searched the rubble for a lead on the identities of the attackers. Fingerprints were lifted from the car bomb, which had been packed with 200 kilos (440 pounds) of explosives, and DNA samples were taken from nearby body parts to determine whether suicide bombers drove the vehicle. Three car bombs exploded Thursday night, one at the Taba Hilton just south of the Egypt-Israel border and two at a bungalow beach camp further south along the Red Sea coast. Two bodies, including that of a toddler, were pulled out of the twisted wreckage of the hotel Saturday, the Israeli military said.