En bombe rammet en buss med ansatte i flyvåpenet på vei til den internasjonale flyplassen i Jemens hovedstad Sanaa, melder BBC.
A bomb blast has struck a bus transporting air force personnel to their base in the Yemeni capital, Sanaa, killing at least six people, officials say.
Several others are reported to have been wounded.
The bus was travelling on the road leading to Sanaa international airport, near the base, an official said.
The government is battling al-Qaeda in the Arabian Peninsula militants who often target the military.
Air force spokesman Col Mahdi al-Aidarous said about 24 officers and soldiers were on the bus, the Associated Press news agency reports.
Earlier this month, suspected al-Qaeda militants killed five soldiers in an attack on a gas terminal in southern Yemen.
And in early August, the US closed 19 diplomatic missions in the Middle East and Africa in response to what it said was a threat of a terrorist attack.