The Saudi coalition's decade-plus war with the Iran-backed Houthis has returned with ferocity during the US-Iran war, with regular attacks reported by both sides. (AFP pic)RIYADH: The Saudi-led coalition and Iran-backed Houthis traded strikes Sunday as fighting raged in the intensifying conflict that has disturbed life for residents of the kingdom's capital Riyadh and war-wracked Yemen.

Disruption in the world's top crude oil exporter has continued to spread as the Houthis keep up their strikes, with Riyadh's landmark Kingdom Centre skyscraper ordering "mandatory" remote working until further notice for office tenants on Sunday.

No reason was given for the order, but it follows a security alert and two drone interceptions around the capital on top of waves of Houthi attacks on Saudi targets in recent weeks.