WATCH: Locals take cover after sirens heard across Israel

Residents across parts of Israel take cover in underground shelters after sirens were heard following the announcement that Iran sent a second wave of missiles headed towards Israel. Citizens were advised to stay alert via cellphone alerts and ensure that they stay close to designated shelters. The latest escalation comes after Israel launched strikes in Lebanon on Sunday, marking its first military action there since the United States announced a truce proposal for Lebanon last week. VIDEO BY A