A Hezbollah-fired drone that killed at least four Israeli soldiers and injured dozens of others is the latest incident of an unmanned aerial vehicle bypassing the country’s air defense systems.

The Hezbollah drone hit the dining hall of the Israel Defense Forces’s Golani Brigade Training Base near Binyamina, a town north of Tel Aviv that is about 40 miles from the Lebanese border, killing four troops and severely injuring seven others on Sunday night. More than 60 troops were injured in total.