Petro Andriushchenko, an advisor to the mayor of the city, reportedly told of fires burning as hot as 2,500 degrees Celcius. He added that the “fire is almost impossible to stop”.
Mr Andriushchenko is said to have posted a video of the bombing of Mariupol’s Azovstal steel plant on Telegram.
He said that experts would have to investigate the cause of the searing inferno, but that the Russians themselves claim they used incendiary shells.
More to follow…