UPDATE 1 — Saudi civil defence sends all — clear after danger warning for capital Riyadh
(Recasts with all-clear, adds details, context throughout) RIYADH, Sept 19 (Reuters) — Saudi civil defence sent an all-clear early on Saturday after issuing alerts for potential danger in Riyadh and the city of Al-Kharj east of the capital, amid an uptick in attacks by Iran-aligned Houthis group on the Gulf country. A