A powerful suicide bomb attack on Shiite militia fighters in central Yemen left dozens of people dead on Nov. 12, military and tribal sources said.

Yemen has been rocked by fresh instability since the Shiite fighters, known as Huthis, seized control of the capital Sanaa in September.

The Huthis have since been expanding their presence throughout the Arabian Peninsula nation but are facing fierce resistance from local Sunni tribes and Al-Qaeda’s powerful Yemeni branch. […]