An explosion injured five foreign tourists - a German, two Australians and two New Zealanders - and five Egyptians on a train in southern Egypt on Wednesday, Reuter reports from Assiut. A bomb was thrown into the train, bound from Aswan to Cairo, about half an hour after leaving Assuit. No one was seriously injured. It appeared to be the fourth deliberate attack on foreigners in Egypt this month. El-Gamaat el-Islamiya, a militant Islamic group that has advised tourists and foreign investors to leave the country, claimed reponsibility for the first three attacks.