Burning munitions cascade down on Ukrainian steel plant - video

A view of a plant of Azovstal Iron and Steel Works damaged during showers of brightly-burning munitions, amid Russia's invasion of Ukraine, in Mariupol, Ukraine, in this undated still image obtained from a handout video released on May 15, 2022.

LONDON (Reuters) -White, brightly burning munitions were shown cascading down on the Azovstal steel works in the Ukrainian port of Mariupol in what a British military expert said looked like either an attack with phosphorus or incendiary weapons.

President Volodymyr Zelenskiy said "delicate" negotiations were proceeding on rescuing Ukrainian servicemen holed up beneath the vast complex.