Iran launched strikes at Israel for the first time during the current cease-fire started, which it called a response to Israeli strikes in Lebanon.

The attack would be the first since a fragile ceasefire took effect in early April, complicating mediation efforts for a deal to end the war.

Air raid sirens sounded in Israel on Sunday as its military worked to intercept barrages of incoming Iranian missiles for the first time since an April ceasefire took hold in the…