The collision of two passenger trains in El-Ayyat, in Giza province, on Sunday killed seven people and injured 112, according to Egypt’s Health Ministry, which also said 45 of the injured have been discharged.

The initial inspection indicates that the front of a train traveling from Giza to Fayoum struck the last carriage of another, traveling from Cairo to Aswan and stationary on the same track. Egypt’s railway authority opened an investigation into the cause of the crash, and prosecutors ordered the driver’s detention.