Secretary-General of the Arab League Ahmed Abul Gheit reportedly will visit Beirut on Saturday following a cataclysmic blast that ravaged central Beirut, MTV TV station said on Friday.

Interior Minister Mohammed Fahmi said on Thursday that he plans to step down from his post if names of those responsible for the mega Beirut port blast were not disclosed at the end of the five-day investigation deadline, al-Joumhouria daily reported.

Lebanon's ambassador to Jordan Thursday announced her resignation, following a cataclysmic blast that ravaged central Beirut, saying 'total negligence' by the country's authorities signalled the need for a leadership change.

It is the second resignation by a Lebanese official since Tuesday's blast killed nearly 150 people, wounded at least 5,000 and destroyed entire districts of the capital.

Lebanon's leadership faced growing rage after a massive explosion laid waste to large parts of central Beirut, with security forces firing tear gas at demonstrations late Thursday as international leaders called for reform.

The massive explosion and devastation triggered by thousands of tons of chemicals improperly stored in Beirut's port is the culmination of decades of corruption that has driven one of the Middle East's most spirited countries to ruin.

The staggering destruction, with losses in the billions of dollars, will compound Lebanon's multiple humanitarian catastrophes. Its people are seething with rage as they are pushed into even more poverty and despair by an accident that appears to have been completely avoidable.

When Boris Prokoshev, a former sea captain spending his retirement years in a Russian village, woke up and found an email saying a ship he once commanded had carried the ammonium nitrate that blew up swathes of Beirut, he was astonished.

Lebanese security forces late Thursday fired tear gas to disperse dozens of anti-government demonstrators angered by a cataclysmic blast widely seen as the most shocking expression yet of their government's incompetence.

Precious wheat spilled out of disembowelled silos, mixing with soot, debris and cement: Beirut's port blast has gutted Lebanon's largest grain storage and sparked public panic over bread shortages.

The annihilation of the port in Tuesday's explosion has further strained food access for a population that relies on imports for 85 percent of what it eats.

The U.S. military is sending shipments of water, food and medicine to Lebanon, it announced Thursday, two days after a massive explosion devastated Beirut and left hundreds of thousands homeless.

French President Emmanuel Macron Thursday called for an international investigation into the blast at Beirut's port that killed more than 130 people and ravaged entire neighborhoods, costing the country billions.