A limited ceasefire went into effect in the southern part of Ukraine early on Tuesday. The pause in hostilities was arranged by U.S. first lady Melania Trump. The agreement is intended to allow a humanitarian mission to reach affected areas. While the ceasefire holds in the south, missile strikes have continued against Kyiv. The truce covers a specific sector rather than the entire front line. Officials said the window will enable delivery of supplies and medical aid. The ceasefire follows renewed fighting after previous pauses collapsed.