He expressed hope that firefighters, who trapped under the rubble of the collapsed building, would be still alive.
Rouhani also called for comprehensive plans to ensure the safety of the old buildings that face the same threats.
As the operation to find the people trapped under the rubble entered third consecutive day, rescue teams retrieved the second body from the site on Jan 21 morning.
Tehran Mayor Mohammad Bagher Ghalibaf, earlier said that between 20 to 25 people are believed to have been trapped under the rubble.
Yesterday, a firefighter that had been hospitalized with burns died due to injuries.
Iran’s government has announced Jan. 21 national mourning day in commemoration of the people killed in the incident.
The fire engulfed the 17-story high-rise, which housed a big shopping center, on Jan. 19. The building collapsed as the fire-fighters were trying to extinguish the blaze.
The damage to the Plasco building is estimated at about $500 million, Ali Fazeli, the head of Iran Chamber of Guilds, previously told IRNA.
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