The death toll in Yemen from the Shiite rebel shelling of a town near the southern port city of Aden rose on Monday to nearly 100, the head of an international aid group said, describing it as “the worst day” for the city and its surroundings in over three months of fighting. The rebels, known as Houthis, and their allies started shelled the town of Dar Saad on Sunday, after losing control of some of Aden’s
neighborhoods. The violence highlighted the bloody chaos of the civil war gripping the Arab world’s poorest country, which also has been the target of Saudi-led, US-backed airstrikes since late March. Hassan Boucenine of the Geneva-based Medicins Sans Frontieres, or Doctors Without Borders, said that by Monday, his organization reported nearly 100 people dead, twice the casualty toll from the previous day.