Ukraine working on diplomatic effort to save defenders at Azovstal works
Russia makes slow progress in Donbas * Fears of May 9 offensive * Last pocket of Ukrainian resistance endures in Mariupol
Smoke rises above a plant of Azovstal Iron and Steel Works during Ukraine-Russia conflict in the southern port city of Mariupol, Ukraine April 25, 2022.(photo credit: Alexander Ermochenko/Reuters)ByMICHAEL STARR, REUTERSUpdated: