Nearly 13,000 people have been left without shelter after a fire ravaged a refugee camp on the Greek island of Lesbos, where the migrant crisis has been compounded by a coronavirus outbreak.

“We saw an exodus of people fleeing from a burning hell with nowhere to go,” Marco Sandrone, the local field coordinator for Doctors Without Borders/Medecins Sans Frontieres, said Wednesday. “Children are scared and parents in shock. We are relieved that there seem to be no victims, and we are working now to address the immediate needs.”