BEIRUT (AP) — As black smoke billowed into the sky, Shiva Karout stepped out of his gym with his colleagues and customers to watch. His gym, Barbell House, sits just across the coastal highway from Beirut’s port where a fire raged. They were curious.

Then a first boom shook them, and curiosity turned to fear realizing how close they were. “We got a bit scared, and we all went back in,” Karout recounted. Tense moments passed, waiting inside, and one of his customers panicked and ran out. Karout went after him.

That was when hell erupted. A gigantic explosion threw up a towering mushroom cloud and sucked out the air, and a wave of destructive energy shot across Lebanon’s capital.

The force threw Karout to the ground. He was cut and bruised, his full arm and leg tattoos of the Hindu god Shiva, after whom he is named, were punctured with lacerations and clotted blood.

But his gym — and everyone still in it — took the brunt of the blast. It smashed out the windows, knocked holes in the walls. Blood now stains the welcome counter. One of his clients took a major head injury and lies in a coma in a hospital and nearly a dozen others sustained medium to serious injuries.

That flashing instant, when a heavy fire on the horizon turned into an unimaginable burst of megatonnage, united Beirutis in a shared trauma and on Wednesday, the day after, they were still reeling with it and its aftermath.

In multiple videos posted on social media, whether shot from high-rise balconies or nearby streets, that instant hits with the same blunt force: Rising black smoke, then a sudden freight…

BEIRUT (AP) — Investigators probing the deadly blast that ripped across Beirut focused Wednesday on possible negligence in the storage of tons of a highly explosive fertilizer in a waterfront warehouse, while the government ordered the house arrest of several port officials.

International aid flights began to arrive as Lebanon’s leaders struggled to deal with the widespread damage and shocking aftermath of Tuesday’s blast, which the Health Ministry said killed 135 people and injured about 5,000 others.

Public anger mounted against the ruling elite that is being blamed for the chronic mismanagement and carelessness that led to the disaster. The Port of Beirut and customs office is notorious for being one of the most corrupt and lucrative institutions in Lebanon where various factions and politicians, including Hezbollah, hold sway.

The investigation is focusing on how 2,750 tons of ammonium nitrate, a highly explosive chemical used in fertilizers, came to be stored at the facility for six years, and why nothing was done about it.

Losses from the blast are estimated to be between $10 billion to $15 billion, Beirut Gov. Marwan Abboud told Saudi-owned TV station Al-Hadath, adding that nearly 300,000 people are homeless.

“Beirut as we know it is gone and people won’t be able to rebuild their lives,” said Amy, a woman who swept glass from a small alley beside by a tall building that served as a showroom for a famous Lebanese designer and was a neighborhood landmark.

“This is hell. How are they (people) going to survive. What are they going to do?” she said, blaming…