Terrorist groups may use “simple and affordable” drones to attack high-profile targets or nuclear power stations in Britain, security experts say.

According to a report by the Oxford Research Group, large numbers of drones commercially available in the UK can be weaponized by simply attaching explosives.

“The UK government, police, military and security services will need to introduce countermeasures to reduce or mitigate the risk of commercially available drones being used for attack,” said the report by the think tank.

The group also warned that drones are already being used by terrorist and militant groups and that the "technology of remote-control warfare is impossible to control.”

“Daesh is reportedly obsessed with launching a synchronized multi-drone attack on large numbers of people in order to recreate the horrors of 9/11,” it warned.

Apart from examining over 200 models of drones available to the public, the group also researched incidents in which drones were used to disrupt major public events such as a football match between Serbia and Albania.

In order to curb the destruction caused by potential drone attacks, the group proposed the introduction of a drone ownership licensing program and the further expansion of anti-drone technologies such as lasers and radio jammers.

“Drones are a game changer in the wrong hands. The government needs to take this threat seriously and commit to a range of countermeasures that still allow for legitimate commercial and personal use,” said the lead author of the report, Chris Abbott.