Rescuers in Beirut search the ruins of a building destroyed after an explosion in the port, hoping to find a survivor.

According to some reports, emergency workers recorded a heartbeat under the rubble, the BBC reported.

The explosion took place on August 4, when 2,750 tons of ammonium nitrate - also known as ammonium nitrate - detonated during repairs. 190 people died, about 300 thousand were left homeless.

On Wednesday evening, a group of Chilean rescuers walked past a destroyed building in Beirut's historic Mar Mikhael district, and their specially trained dog signaled that a living person was in the ruins. Rescuers returned to this house the next morning - and the dog pointed to the same spot again.

The rescuers used a special scanner and detected a person's heartbeat or breathing, and then delivered equipment to the site for parsing the debris.

When journalists reported about the finding of rescuers, residents of Beirut gathered near the building with flags.

Silence is declared periodically at the work site so that possible cries for help can be heard. The operation involves Red Cross employees, military personnel, firefighters, and volunteer rescuers. It will take at least six hours to reach a possible survivor, they said.

A group of Chilean rescuers arrived in Lebanon on 1 September. According to sources in Lebanon, they have highly sensitive equipment that can detect a person's breathing at a depth of 15 meters.

It has not yet been confirmed that there is indeed a living person under the ruins, but those gathered do not lose hope.