No need for hi-tech drones, you can just use a kite: https://www.haaretz.com/israel-news/massive-fire-after-kite-with-molotov-cocktail-attached-sent-from-gaz

No need for hi-tech drones, you can just use a kite: https://www.haaretz.com/israel-news/massive-fire-after-kite-with-molotov-cocktail-attached-sent-from-gaza-1.6052362