He further praised citizens who stepped forward to donate blood for the injured.
Moreover, the Leader asked the security and judicial officials to conduct a thorough investigation into the cause of the incident to identify any negligence or deliberate actions behind it, according to MNA.
On Saturday, a powerful blast rocked the port of Shahid Rajaee in Hormozgan Province after a fuel tanker exploded for reasons still under investigation.
The tragic incident has so far claimed 40 lives and injured more than 900 people.