Iran's Ministry of Sports and Youth has called on the country's youth, including athletes, artists and students, to gather around the sites from 2:00 pm (local) on Tuesday.
That is around 13 hours before Trump's deadline for the Strait of Hormuz to reopen, which ends at 3:30 am (local time) on Wednesday.
This action (the human chain) has been formed at the suggestion of the youth themselves," Iran's Deputy of Youth Affairs, Alireza Rahimi, said in a video message.
"A number of university youth, young artists, and youth organisations proposed that we form a human ring or human chain around the country's power plants," he added.
According to the Iranian minister, the "symbolic action is called the 'Human Chain of Iran's Youth for a Bright Future."
"We hope that with the participation of young people across the country, this human chain will be formed around the power plants, and it will be a sign of the youth's commitment to protecting the country's infrastructure and building a bright future," he added.
Trump has expanded his threat against Iran to include all power plants and bridges as his ultimatum to make a deal ticked closer, with Tehran rejecting a 45-day ceasefire proposal and saying it wants a permanent end to the war.
The entire country can be taken out in one night, and that night might be tomorrow night," Trump said and suggested that his deadline was final, saying he'd already given Iran enough extensions.
The US leader has issued ultimatums to Iran before, only to find ways to back off. But he was more explicit this time on plans to follow through. "Every bridge in Iran will be decimated by 12 o'clock tomorrow night," he said, and all power plants will be "burning, exploding and never to be used again."
Asked if he was concerned about accusations of war crimes, Trump responded, "No, not at all." He suggested that Iranians want the US to carry out its threats because it could lead to the end of their current leadership.
