A fourth body has been found in the ruins of two buildings that collapsed in the southern city of Marseille.
As many as eight people are feared to have been killed when the buildings crumbled on Monday morning in Noailles, a working-class district in the heart of the Mediterranean port city.
Authorities had evacuated several dozen residents from neighbouring buildings as a precaution.
French rescue workers are seen near rubble after buildings collapsed in central Marseille, France, November 5, 2018.
"The most important thing is to save lives", Castaner said at the scene.
French Interior Minister Christophe Castaner said "air pockets" under the debris meant there's "hope to locate and find someone that can be saved".
Images of the buildings before they collapsed showed that one had five floors and the other six.
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But a 2015 government report said some 100,000 Marseille residents were living in housing that was unsafe to their health or security.
"She was a great girl, she used to come and study at the bar", he said, without giving his name.
"It could have been me", the 25-year-old philosophy student said, visibly shaken.
The buildings were in a small shopping street in the centre of the city.
But a 2015 government report said about 100,000 Marseille residents were living in housing that was unsafe to their health or security.
"It's unthinkable that such things happen in our time", said Christian Gouverneur, who owns a flat across the road from the disaster site.