An explosion outside Egypt's National Cancer Institute (NCI) killed at least 19 people and injured 30 others, Egypt's interior ministry said Monday, August 5, Deutsche Welle reports.

Authorities said the explosion was caused by a car driving against traffic, colliding with three other cars.

What is known so far:

- The car drove against traffic on Cairo's corniche in the southern district of al-Manyal,

- The multiple car collision caused a fire that affected parts of the hospital,

- People injured by the collision were transferred to other nearby hospitals,

- The country's top prosecutor ordered an investigation into the incident.

State-run Cairo University, which hosts the NCI, denied claims that the explosion had taken place inside the institute or that the fire had spread to the center, as initially speculated.

"All the patients and workers at the center are well," the university said.

Health Minister Hala Zaid told Egyptian television channel CBC Extra discussed the death toll but did not comment on the causes of the explosion, only that the incident took place in front of the hospital and not inside, as initially speculated.

The health minister said that ambulances were sent to the hospital to transfer patients to other hospitals. Zaid added that the search continues for other bodies that could have fallen into the Nile River in front of the hospital.