At least 50 people were killed and 20 others sustained injuries Wednesday when a car bomb went off outside the police academy here, security officials said.
Hundreds of high school graduates and cadets were lining up in a long queue, waiting to be enlisted in the academy, at about 7:00 a.m. (0400 GMT) when the car bomb exploded, security officials said.
According to witnesses, a mini-bus was moving very fast on the street along the wall of police academy in central Sanaa, before it exploded at its main gate. The explosion could be heard across the city. Gunshots were also heard after the explosion, Xinhua reported.
This is the deadliest attack in Sanaa since Oct 9, 2014, when an Al-Qaeda suicide bomber blew himself up at a gathering of the Shiite Houthi group, killing at least 47 people.
Earlier, an Al-Qaeda suicide bomber attacked this police academy June 11, 2012, killing at least 21 people.