A judicial investigation is underway to determine the cause of Tuesday's train derailment, Morocco's Prime Minister Saad Eddine El Othmani said here on Thursday, Xinhua reported.
Speaking at the opening of the weekly cabinet meeting, El Othmani stressed that the results of the inquiry will help the country draw lessons and avoid similar accidents in the future.
A train derailed Tuesday near the capital Rabat, killing seven passengers and injuring 125 others.
The prime minister said the train derailment is "tragic" and reiterated his condolences to the victims' families and wished the wounded speedy recovery.