British prosecutors have charged a 24-year-old man named Junead Ahmed Khan, along with his 22-year-old uncle, Shazib Ahmed Khan, with trying to join the ISIS terrorist organization.

Junead Khan has been further charged with planning a terror attack on U.S. military personnel in the United Kingdom.

Both men are from Luton, a town north of London. According to the latest census data, around 24 percent of Luton's population is Muslim.

According to a statement from the Crown Prosecution Service, the two had been planning to travel to Syria in order to join the Islamic State in Levant. The statement reads: "It is further alleged that Junead Khan was planning a terrorist attack on US military personnel in the UK and he has been charged with an additional terrorism offence to reflect this."

Junead Khan is a delivery driver who apparently monitored the U.S. air bases at RAF Mildenhall and RAF Lakenheath, both of which are located in Suffolk, as part of his delivery route. As reported by the Telegraph, he had planned on staging a car crash by either running over airmen or crashing into their vehicle outside of a base.

Mark Dawson, the prosecutor involved in the case, said that Shazib Khan was charged with preparing for travel to Syria to join Islamic State possibly for “martyrdom purposes,” whereas Junead Khan was charged with the stipulation that his plans were “potentially not for martyrdom purposes.”

As more and more British men have been trying to join up with ISIS in Syria and Iraq, there seems to be an increase in U.K. citizens electing to join up to fight the group as well.

In 2014, a British man who called himself Macer Gifford said goodbye to his job as a financial trader in London and traveled to join the Kurds in their fight against the Islamic State in Syria.

Speaking to NPR, the man described the thinking that led him to try to fight ISIS, saying: "Every day I'd flick on my computer screen and see the most horrendous crimes being committed in the Middle East. It just stirred me into action. I first wanted to donate money to charity, perhaps even work for a charity, but then the option came up that I could actually go out and volunteer and fight ISIS, so that's exactly what I did."

Both Junead and Shazib Khan will be tried in the U.K., said Deborah Walsh, Deputy Head of Counter Terrorism at the Crown Prosecution Service, in the press release.