First Lady Melania Trump says Russian President Vladimir Putin responded to her letter of concern about the child victims of the Russia-Ukraine war.

She made the announcement on Friday, saying that after an "open channel of communication" with Putin, Ukranian children displaced in the war had been reunited with families.

The First Lady's "peace letter" was hand delivered to Putin during his Alaska visit in August.

President Donald Trump shared parts of the letter on social media. In it, the first lady pleads with Putin to protect children, writing that doing so "will do more than serve Russia alone" and "will serve humanity itself".

"Eight children have been rejoined with their families during the past 24 hours," Mrs Trump said, flanked by American flags behind a podium in the White House.