Suicide Bomber Massacres More than 30 in Yemen

A suicide bomber driving a minibus full of explosives has killed more than 30 people in the capital of Yemen.

Witnesses say the blast happened as cadets lined up to enroll at a police academy in the heart of Sanaa.

"What happened is we were all gathering and (the bomber) exploded right next to all of the police college classmates. It went off among all of them and they flew through the air," eyewitness Jamil al-Khaleedi explained.

At the scene of the attack, the dead and injured lay on a sidewalk as firefighters sprayed water to extinguish the blaze. A charred taxi cab smoked near the remains of the minibus just yards from a gate for the academy.

No group has claimed responsibility for the deaths although the al Qaeda branch in Yemen has carried out similar attacks in the past.

The U.S. government considers it to be the world's most dangerous branch of the terror network as it has been linked to several failed attacks in the United States. American drone strikes have frequently targeted Yemen al Qaeda terrorists.

It's also possible that Shiite rebels, known in Yemen as Houthis, are responsible. They've recently seized large areas of the country, including Sanaa, as part of a power struggle with the president of Yemen.

Critics view them as a proxy for Shiite Iran although the rebels deny the charge.

Last week, an al Qaeda suicide bomber killed 24 people in an attack on Houthis as they celebrated the birth of the Muslim prophet Muhammad.

The police academy crowd included both Houthi rebels and police cadets.