50 kids die in bus crash.
Parents searched for the pupils' remains along the tracks after the vehicle was split in two and shunted for half a mile.
The bus driver and two women died and more than a dozen others were hurt.
Hospital doctor Mohamed Samir said witnesses "told us the barriers were open when the bus crossed".
tw a mTh wom a do Ho Sami us th when The aged f to sch miles Rai and t hamm The said t The children, who were aged four to six, were heading to school in Manfalut, 200 miles south of Cairo.
Rail boss Mustafa Qenawi and transport minister Mohammed el-Meteeni quit. The provincial governor said the man in charge of the