A store of oil and tyres at Beirut port caught fire on Thursday, a military source said, a little more than a month after a massive blast devastated the port.
The fire erupted in the duty free zone of the port, sending a huge column of smoke above the city.
The military source said the cause of the blaze was not immediately clear.
Television footage showed firefighters trying to douse the blaze at the port, where warehouses were shattered by the August 4 blast.
About 190 people were killed in last month's explosion and a swathe of Beirut near the port was ruined. The blast was caused by a huge store of ammonium nitrate that had been kept at the port in poor condition for years.


UN peacekeeper killed in southern Lebanon after projectile explosion
Iranian attack kills one in Kuwait, damages distillation plant
Iran accuses US of ground assault plans as Pakistan hosts regional talks
Fugitive accused of killing two Australian police officers shot dead
Netanyahu orders expansion of security buffer zone in southern Lebanon
Ten Kuwaiti troops injured in Iranian missile attack
Oman says no party has claimed responsibility for attacks on its territory
Anti-Trump 'No Kings' rallies pop up in thousands of US cities
