While visiting the scene of the Marseille building collapse, French Interior Minister Gérald Darmanin says that there are between four and ten people trapped under the rubble. "We don't know if they're alive or dead," he tells reporters, adding that authorities have also yet to discover the cause of the "very large explosion" that prompted the collapse. (COMPLETES VIDI33CW4HM_EN, VID33CW6B9_EN, VIDI33CW6JT_EN, VIDI33CW6TN_EN and VIDI33CW7MD_EN) IMAGES AND SOUNDBITES