The United States Department of Justice has charged three individuals allegedly linked to Iran over suspected terrorist plots in the US and Europe, including an incident near the Royal Air Force (RAF) Fairford base in the United Kingdom.

The department said the suspects were involved in orchestrating a plot targeting the military base, where US forces were stationed, following reports of suspicious vans near the facility in September.

According to the indictment, one of the suspects, a dual Iranian-Iraqi citizen, allegedly communicated with associates in the UK from a prison in New York, where he is being held over separate charges.

The other two suspects are accused of coordinating similar activities from Iran.

The three defendants were identified as Iranian national Mohsen Mohajeri, Iraqi national Mohammad Ali al-Hassani, and dual Iranian-Iraqi citizen Mohammad Baqer Saad Dawood al-Saadi.

The charges were announced on Tuesday.

Meanwhile, Iran has strongly denied involvement in the RAF Fairford incident.

Reports indicate that seven men have been arrested in the United Kingdom in connection with the incident, which raised security concerns around the military installation.