A Lebanese government minister says his country has filed a complaint against Israel at the U.N.’s labor organization over the string of deadly attacks involving exploding pagers, saying workers were among those killed and injured.

Lebanon’s government said Wednesday it had filed a complaint with the UN’s International Labor Organization (ILO) against Israel, citing deadly attacks allegedly involving explosive devices hidden in pagers that killed dozens and injured thousands across the country last month.

It remained unclear if there were any survivors or bodies still trapped under the debris following the airstrike, which came without warning.

The violence came as top US diplomats were in the region to push for cease-fires in Lebanon and Gaza, hoping to wind down the wars in the Middle East in the Biden administration’s final months.

Blasts from rigged communication devices killed at least 37 people and injured over 4,000 over two days in September.

Waves of Israeli strikes reduced many buildings to rubble in Beirut's southern suburbs, as Hezbollah said it wanted to see U.S. actions, not words, after the election of Donald Trump. Israel has welcomed Trump as a leader who would support it "unconditionally.