A huge fire broke out Thursday at the port of the Lebanese capital, triggering panic among employees and residents in the area.
The fire erupted in the duty free zone of Beirut Port, sending a huge column of smoke above the city.
The cause of the blaze was not immediately clear, but reports said it broke out at a warehouse of oil and tires.
The Geneva-based International Committee of the Red Cross said it had aid in a warehouse that was on fire. "Our humanitarian operation risks to be seriously disrupted," ICRC Middle East director Frabrizio Carboni wrote on Twitter.
Beirut's port is used by aid agencies to supply refugees in Lebanon and people in need in neighboring Syria.
A military source said Thursday's blaze appeared to have started when cooking oil caught fire and spread to stores of tires.
Television footage showed firefighters trying to douse the blaze at the port, where warehouses and concrete grain silos were shattered by the Aug. 4 blast.
Army helicopters took part in efforts to extinguish the fire.
Panicked residents cracked open windows and called each other to warn them of the new fire. Local TV stations said the companies that have offices near the port have asked their employees to leave the area. TV footage showed dozens of employees running out of the port area.
Lebanese troops closed the major road that passes near the port referring traffic to other areas.
Lebanese President Michel Aoun said the fire might have been the result of sabotage, a technical error or negligence, the presidential Twitter account said.
"In all cases, the cause must be known as soon as possible and the perpetrators held to account," the president was quoted as saying in the tweet as he met the supreme council of defence.
About 190 people were killed and 6,500 injured in last month's blast, and a swathe of Beirut near the port was ruined. The blast was caused by nearly 3,000 tons of ammonium nitrate that had been kept at the port in poor condition for years.
