The officials, speaking on condition of anonymity because they were not authorized to speak to journalists, say that warplanes hit at least eight other Yemeni provinces on Thursday.
In Sanaa, the airstrikes also hit several houses of military leaders loyal to former President Ali Abdullah Saleh, who is allied with the Houthis.
The rebel-held Ministry of Interior says the raids in Sanaa killed 8 people, without specifying whether they were civilians.
