The presidents also considered various aspects of the situation in Ukraine. They praised the additional ceasefire measures that were approved at the Minsk contact group meeting on July 22.
The huge blast damaged buildings in a radius of several kilometres in Beirut, leaving more than 200,000 homeless or living in homes with no windows or doors.
President Michel Aoun has asked the government to stay on in a caretaker capacity until a new cabinet is formed.
During his trip to Beirut on Thursday, Macron had announced that France would organize an international aid conference to raise funds for emergency relief.
Macron also promised a “clear and transparent governance” so that the aid goes directly to the populations and aid groups.
The explosions hit a country already reeling from its worst economic crisis in decades which has left nearly half of the population in poverty, as well as from the coronavirus pandemic.
"It would seem like it, based on the explosion. I met with some of our great generals and they just seemed to feel that it was", Trump further added.
Two enormous explosions devastated Beirut's port on Tuesday, leaving at least 73 people dead and as many as 3,700 injured across wide parts of the country's biggest city.
The blasts were so massive they shook the entire city and could be heard throughout the small country, and as far away as Nicosia on the eastern Mediterranean island of Cyprus, 240 kilometres (150 miles) away.
Diab accused former Prime Minister Saad Hariri of launching a campaign against the current government, causing people to return to the streets.
