SAN DIEGO - Authorities are searching for a missing Serra Mesa woman who is considered at-risk. Mehria Mansury, 79, was last seen Tuesday at about 8 a.m. at her home in the 2800 block of Amulet Street, according to authorities. She is Middle Eastern, 5 feet 1 inch tall and weighs 140 pounds. Mansury has brown hair and brown eyes. .Anyone who knows of her whereabouts is asked to contact authorities at 619-531-2293.