A truck smashed into multiple cars stopped at a checkpoint on a large Cairo road on Wednesday, killing 15 people.
The accident took place just a few hours after a nighttime curfew took effect in Egypt to curb the spread of the coronavirus.
A dozen people were reported injured in the incident.
Under the curfew, public transport shuts down after 7pm (17:00 GMT) and people are forbidden from the streets unless they have an exemption.
Authorities said a string of microbuses, trucks and cars were lined up at a checkpoint on a road from southern Egypt into central Cairo waiting for officers to approve their curfew exemptions.
Suddenly, the truck loaded with construction materials ploughed into the cluster of vehicles at high speed, the state-owned Ahram news agency said.