Within two hours of a bomb blast that wounded seven people near a downtown museum, Egyptian officials said two women in a car opened fire at a tour bus. At least three people were killed _ both the female shooters and apparently the man carrying the bomb who police said jumped off the bridge _ and at least nine people were injured, AP reported. An Interior Ministry statement identified the man killed in the explosion as Ehab Yousri Yassin, and said he jumped from the bridge during a pursuit, setting off the explosive he was carrying. He was being chased as a suspect in the April 7 bombing by the Khan al-Khalili bazaar, it said. Another statement identified the two women in the shooting as the sister of the bomber and his fiancee, Negat Yusri Yassin and Iman Ibrahim Khamis, both in their 20s. The two women were in a car following the tour bus, then stopped the car and opened fire on the bus from behind, the statement said. They shot three bullets into the back window, then shot themselves, it said. One died immediately, the other died in the hospital.