Warplanes from the Saudi-led coalition on Sunday bombed the residence of Yemen's former president Ali Abdullah Saleh, following a night of intensive strikes against rebel positions, witnesses said.
Two air raids struck Saleh's house in central Sanaa, witnesses said. Yemen's former strongman is believed to be outside the capital.
Saleh, who stepped down in February 2012 following a year of deadly nationwide protests against his three-decade rule, is accused of siding with Shia Houthi insurgents who have rebelled against UN-backed President Abd Rabbo Mansour Hadi.
Troops still loyal to Saleh have fought alongside the rebels, who overran the capital unopposed in September and have since extended the areas under their control.
Riyadh formed an Arab coalition in support of Hadi, who has fled to Saudi Arabia, and launched strikes in late March against rebels as they closed in on his refuge in the southern city of Aden.
The coalition bombed the Houthi northern strongholds in Sanaa overnight Saturday as Saudi Arabia pledged to punish rebels for deadly cross-border bombings that hit Saudi towns.