An Iran-linked hacker group claims to have breached FBI drones and has threatened to target the World Cup, which kicked off Thursday, AFP reported.

Axar.az informs that the SITE Intelligence Group, an organization which monitors jihadist groups, published a statement from Handala saying it had had access "for months" to "every image and every suspect" captured by first-person view (FPV) drones used by the FBI.

The hackers said the drones used technology including facial recognition and license plate screening deployed for counterterrorism.

"Better tighten your World Cup security, we don't like some of those teams at all. Don't forget: FPVs are everywhere; you never know when one might end up right in your team's bus," Handala said in the statement quoted by SITE.

The FBI is deploying drones around World Cup stadiums to protect against unauthorized aircraft.