BEIRUT — Three people were arrested in Spain and one more in Germany on suspicion of belonging to a network that supplied Hezbollah with parts to build exploding drones that would have been used in attacks in northern Israel, the Associated Press (AP) reported citing Spanish authorities. 

The investigation began in Spain when the Guardia Civil detected “suspicious operations” by Spanish companies run by Lebanese nationals. These companies were allegedly involved in acquiring large quantities of materials and components to manufacture drones capable of carrying explosive charges of several kilograms, according to AP. 

Authorities in Spain and Germany alleged that they "believe Hezbollah may have built several hundred drones with these components."

Since Oct. 8, Hezbollah and Israel have been involved in near-daily cross-border fighting. Hezbollah has repeatedly said that its actions are in support of its Palestinian ally Hamas.