Hezbollah launched a barrage of rockets into central Israel on Tuesday, setting off air raid sirens in the country’s most populated areas but causing no apparent damage or injuries.

Hezbollah said it had fired rockets at two bases near the Israeli city of Tel Aviv and a naval base west of Haifa on Tuesday morning just hours before U.S. Secretary of State Antony Blinken arrived in Israel to make another push for an elusive ceasefire.

The low-boil conflict between Israel and Iran has shaped the Middle East for decades. Of the many conflicts that have roiled the region, theirs has long been among the most explosive. The two have attacked each other — mostly quietly and in Iran’s case often by proxy — while avoiding an escalation into direct war.