SANAA, Yemen (AP) — Saudi-led coalition fighter jets rained bombs on the Yemeni capital, Sanaa, on Friday levelling houses packed with civilians and killing at least 14 people, including eight members of a single family, relatives and witnesses said.

The family's 1-year-old baby was among those killed, they said, looking over the rubble of one of the bombed homes in the city's southern district of Fag Attan, hours after the attack.

The bombing was the latest in a significant escalation in the coalition's air campaign in Yemen. On Wednesday, at least 41 people died when aircraft bombed a small...