President Emmanuel Macron was the first world leader to visit Beirut following the tragic explosion on Tuesday that killed at least 130 and left 5,000 people injured.
Macron will be met on Thursday by his counterpart Michel Aoun, and the Prime Minister, Hassan Diab.
FranceInfo reported that at least one French citizen was killed and more than 20 injured in the blast, three of them in a serious condition.
On Wednesday, a Paris court opened a legal inquiry into the blast for causing 'unintentional injuries' which will be handled by a special division of the gendarmerie.
Aid, reconstruction and reform for Lebanon
France has already sent three military aircraft to Lebanon, with 55 emergency workers and six tons of material.
During his visit, Macron will seek to rally urgent aid for Lebanon but is also expected to press for overdue reform in France's ex-colony.
The Elysée palace said in a statement that this was the opportunity to "lay down the foundations for a pact for the reconstruction of Lebanon" that would "open up a long-term perspective".
"France is at the side of Lebanon. Always," Macron tweeted in Arabic on Tuesday.
أعبرُ عن تضامني الاخوي مع اللبنانيين بعد الانفجار الذي تسبب بعدد كبير من الضحايا هذا المسأ في بيروت وخلّف اضرارٍ جسيمة.
— Emmanuel Macron (@EmmanuelMacron) August 4, 2020
ان فرنسا تقف الى جانب لبنان دائماً.
هناك مساعدات واسعافات فرنسية يتمّ الان نقلها الى لبنان./.
International support pours in
The world rallied round Beirut on Wednesday, sending supplies and personnel for rescue operations.
Qatar and Kuwait sent mobile hospitals, collapsible beds, generators, burn sheets and medical supplies for the 4,000+ people who were being treated for injuries.
Cyprus, 240 kilometres away where the blast was felt, along with other EU nations Greece, Italy, Netherlands, Czech Republic and Poland, offered an array of assistance including helicopters, doctors, police, firefighters, rescue experts and sniffer dogs.
Iran's President Hassan Rouhani said Tehran stood "ready to offer medical and medicinal aid and help".
US Secretary of State Mike Pompeo offered Washington's assistance and stressed the USA’s ‘solidarity … and support for the Lebanese people’.
Britain's Queen Elizabeth II sent a message of condolence to the president of Lebanon, saying she was ‘deeply saddened’ by the blast.
