Rescue workers dug through rubbles in a wrecked district of Lebanon's capital Beirut in search for possible survivors from a mega-blast. A sniffer dog used by Chilean rescuers responded to scent from the site of a collapsed building in the Gemmayzeh area.

The building has completely collapsed as a result of the blast that killed 191 people, wounded more than 6,500 others and destroyed swathes of Beirut. Seven people are still missing. Chilean rescuers, Lebanese civil defense teams and Beirut fire department workers were excavating the site.