Eight more grain silos at Beirut port have crumbled, marking the third collapse in a month.
A cloud of dust rose over the port on 23 August after the collapse, which brought down the last of the northern block of silos damaged from the fire erupted in July.
The remaining southern block is more stable and not at imminent risk of collapse, said French civil engineer Emmanuel Durand, who has installed sensors on the silos.
The initial collapse was caused by a fire that broke out because of fermenting grains stored in the silos. Fire engines and an army helicopter have sprayed the silos with water in an attempt to put out the fire.
After the first collapse, more concrete silos cracked and fell on 4 August.
On 21 August, the Lebanese Health Ministry reported that samples from around the port showed high traces of common mould, a composition which is not dangerous unless inhaled in large quantities for a long period of time.
The Lebanese Government had previously ordered the demolition of the silos due to safety concerns, but the move has since been suspended amid objections from relatives of the victims who want to preserve the site as a memorial.
More than 200 people died and 7,000 were injured following the explosion in Beirut.
