Militants have been touring the southwestern city of Taiz in the build-up to Ramadan.
Father Tom Uzhunnalil was abducted in March 2016 after an attack on a care home.
The attack helicopter that killed 42 Somali refugees in Yemen was likely sold to the Saudis by the U.S.
Yasir al Silmi was held at the detention center from 2002 to 2009.
The would-be attacker's explosives, hidden in his underwear, failed to explode.
How should we retaliate for the missile strikes against U.S. ships?
The group's Yemeni wing has reportedly claimed responsibility for the attacks.
The Gulf state is supporting the Saudi-led coalition against Yemen's Shiite Houthi rebels.
The attack came days after the assassination of a prominent judge on the same street.
The U.S. steps up support of the Saudi-led coalition in Yemen as humanitarian conditions worsen on the ground.
The UN is preparing for a "massive influx" of refugees to Djibouti and Somalia as fighting in Yemen escalates.
Food, water and electricity shortages throughout country as foreign warship reported shelling Houthi positions outside city.
The Houthis' recent gains in Aden have happened despite a week of air strikes.
Violence is escalating in the country as Saudi-led air strikes continue.
Iranian-allied Houthis besiege Yemeni president's base as Saudi Arabia deploys a reported 150,000 troops and 100 warplanes.
There have been numerous conflicting reports about where president Hadi has fled to.