At least 20 more people were killed and 450 injured in Lebanon on Wednesday after a series of new explosions of wireless devices rocked the South, the Bekaa and the southern suburbs of Beirut, according to the Ministry of Health and the Lebanese Red Cross.
Customary international humanitarian law prohibits the use of booby traps – objects that civilians are likely to be attracted to or are associated with normal civilian daily use – precisely to avoid putting civilians at grave risk and produce the devastating scenes that continue to unfold across Lebanon today. The use of an explosive device whose exact location could not be reliably known would be unlawfully indiscriminate, using a means of attack that could not be directed at a specific military target and as a result would strike military targets and civilians without distinction. Human Rights Watch
Hezbollah are not civilians, but combatants. So this is legal under international law.
Feelings don’t care about the facts.