The death toll of Egypt's train derailment has risen from 11 to 23, according to the official Ahram Online news website on Tuesday.

The accident happened when four carriages of the train, traveling from Cairo to the Delta city of Mansoura, derailed in the city of Toukh on Sunday.

The top prosecutor of Egypt has ordered the detention of 23 people including the train driver, an assistant, a railway maintenance observer at the crash site, and others for further investigation into the accident, according to the report.

Earlier in the day, Egypt's Minister of Transportation Kamel al-Wazir sacked the chairman of the state-run National Railways Authority (NRA) and issued a number of decisions to reshuffle the other nine top officials of the NRA.

"The goal of these decisions is not merely about leadership changes of the authority, but to meet the demands of the upcoming phase which requires new competencies to continue upgrading the railway network," the minister said.

(With input from Xinhua)