More than 6,500 were injured in the blast, while seven people are still missing.
Damages after the August 4 2020 Beirut explosions.
A sniffer dog with a Chilean search-and-rescue team first detected something on Gemmayzeh Street as the team swept that part of the city.
Images of the black-and-white five-year-old dog named Flash, wearing red shoes to protect its paws, circulated on social media.
Some wept silently. Others held ropes tied as nooses - an indication of the grief and raw anger toward officials that persists in the country.More news: Rhea Chakraborty is ‘ready for arrest, says her lawyer
Rescuers resumed work at 2230 GMT after military engineers with the help of two cranes "managed to secure the building for work to resume", the statement said.
After detecting a pulse on Thursday, Lebanese emergency workers teamed up with the Chileans determine whether there were any survivors.
"Where's your conscience? There's life under this building and you want to stop the work until tomorrow?" one woman told a soldier.
The team of rescue workers included volunteers who came from Chile, as well as Lebanese volunteers and members of the civil defense. Thousands of homes were damaged.
The hypothesis has been rejected by many observers, including Lebanese protesters, many of whom blame government negligence and corruption for the blast.More news: Aussies to get free UQ COVID vaccine
The blast traumatized a nation already suffering for months under severe economic crisis and financial collapse, but rescue workers sparked hope with a report Thursday that a heartbeat had been detected under the debris.
"These [signs of breathing and pulse] along with the temperature sensor means there is a possibility of life", Eddy Bitar, a local non-governmental organisation worker, told reporters at the scene.
Salman Andary, of Sky News, wrote in Arabic on Twitter that the rescue team's sensors had detected a heartbeat again under the blast wreckage. "It's, like, five by five meters [approximately 16 by 16 feet]; it's not very deep because we are working just above the vault of the ground floor", a French rescue worker identified as Emmanuel, assisting the Chilean team, said. At the time, they had no reason to believe there were any bodies or survivors left at the site.
Gemmayze and the neighbouring Mar Mikhael district were among the areas hardest hit by the Aug 4 explosion at the nearby port, which was caused by massive amounts of badly stored ammonium nitrate.More news: Alexander Zverev advances to fourth round amid freakish match delay