The FBI is keeping a closer watch on Muslim leaders in Arizona due to a series of events involving radical Islamic activity in the state, The Arizona Republic has reported.

The most recent incident involves Akram Musa Abdullah of Mesa, who was indicted in August for falsely telling the FBI that he did not raise money for the Holy Land Foundation, a non-profit group currently on trial for supporting terrorist groups like Hamas.

Earlier in March, law enforcement authorities in Phoenix detained 15 young Muslim males after they were seen shooting assault rifles, a shotgun, handguns, and a sniper rifle near a hill for over an hour. Approximately five others left before police arrived, and those detained claimed the weapons were owned by their parents and they did not know it was illegal to shoot in that area.

Six of those detained were charged with felony weapons possession, including two sons of imams in the area and the son of Abdullah.

One of the individuals arrested was the son of Omar Shahin, the spokesperson for the North American Imams Foundation. Six imams from Arizona were being sent to the foundation’s annual conference in 2006 when they were removed from their airplane when passengers and crew members became concerned over their activity on board. No charges were made against the imams and a lawsuit is pending.

Shahin is also on the FBI’s radar due to his past role as a fundraiser for two charities currently shut down by the federal government for supporting the Hamas terrorist group, one of which is the Holy Land Foundation. Shahin also denied that the attacks of September 11, 2001 were carried out by Muslims and has written a book that extensively quotes from a radical Islamic preacher, the Arizona Republic report stated.

Arizona garnered attention in the aftermath of the September 11, 2001 attacks when it was found that at least one of the hijackers had attended flight school in Phoenix.