AL-AYYAT, Egypt — Two passenger trains collided south of Cairo on Sunday, killing seven people and injuring 112, Egypt’s health ministry said in an updated tally.

The crash occurred in Al-Ayyat in Giza province. The ministry said 45 people had been discharged from hospitals after receiving treatment.

Egyptian National Railways said the crash delayed service on lines serving Upper Egypt. It offered refunds to passengers who canceled and deployed buses for stranded travelers.

The collision prompted a review of ambulance operations and medical care for the injured. The cause of the crash had yet to be established.