Israel’s military announced Thursday that it killed 15 Hezbollah militants in southern Lebanon and carried out airstrikes on Beirut. Ricki Rosen in Tel Aviv has updates on the clashes. On Wednesday afternoon, Israel and Iran exchanged threats of retaliation if attacked, as the United Nations Security Council convened amid growing fears of a broader conflict. Ukrainian officials report a Russian-guided bomb hit a five-story apartment building in Kharkiv as part of a wider assault on 15 Ukrainian regions. Anna Chernikova is in Kyiv with more details. In Africa, Nigeria has launched a nationwide blood donation campaign in response to a severe shortage.