Rescue operations continued as dawn broke in Beirut on Wednesday morning, hours after a massive explosion devastated Lebanon's capital.
The blast flattened much of the city's port, and video from the morning after showed the scale of the damage.
More than 70 people were killed and 3,000 injured, with bodies buried in the rubble, officials said.
It was not clear what caused the blast, which struck with the force of a 3.5 magnitude earthquake and was felt as far away as Cyprus more than 200 kilometers (180 miles) across the Mediterranean.
Lebanon's interior minister said it appeared that a large cache of ammonium nitrate in the port had detonated.