Four cats remain missing after a huge fire in Foster City as pet owners search daily for answers while they wait for access to the damaged building. Four cats remain missing after a huge fire in Foster City as pet owners search daily for answers while they wait for access to the damaged building. Four cats remain missing after a huge fire in Foster City as pet owners search daily for answers while they wait for access to the damaged building. Four cats remain missing after a huge fire in Foster City as pet owners search daily for answers while they wait for access to the damaged building. MORE: Residents displaced, firefighters injured after massive fire at Foster City condo complexSan Mateo County firefighters are battling a large building fire in Foster City that quickly escalated to a 6-alarm response on Sunday.