A massive explosion in Beirut that killed 100 people and injured 4,000 is thought to have been triggered by a fire that was sparked by a welder.
More than 2,750 tonnes of ammonium nitrate, used in fertilisers and bombs, exploded in a warehouse where it had been stored without safety measures for six years, according to officials.
As teams searched the rubble for survivors and bodies, photos from the blast site showed apocalyptic scenes with a massive crater and buildings flattened by a blast that is said to have had a fifth of the power of the Hiroshima atomic bomb.
Local officials said half of the capital suffered damage that will likely cost more than £2.2 billion.
A preliminary investigation revealed Tuesday's blast occurred after a fire was sparked by someone welding a small hole to prevent theft from the warehouse, the Lebanese TV station LBCI reported.
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