Ukraine’s deputy prime minister Iryna Vereshchuk said that there could be no question of surrender.
“There can be no talk of any surrenders, laying down of arms. We have already informed the Russian side about this,” she said, according to online news site Ukrainska Pravda. “Instead of wasting time on eight pages of letters, just open a [humanitarian] corridor.”
https://www.theguardian.com/world/2022/mar/20/russia-sets-5am-deadline-for-ukrainian-forces-surrender-in-mariupol