Minneapolis, MN (KROC-AM News) - The FBI has made another terrorism-related arrest in Minnesota. 19-year-old Khaalid Adam Abdulkadir was taken into custody Friday morning on charges alleging he posted a tweet threatening FBI agents following the arrest of an Eagan man on terrorism charges earlier in the week.

The criminal complaint filed against Abdulkadir also includes details about what the FBI termed “additional troubling behaviors.” In one case, Abdulkadir was part of a group of several young men who gathered near a window outside a cafeteria in the Federal Courthouse in Minneapolis and recorded video of a Deputy U.S Marshal as he was eating a meal from a range of about 2 feet. That incident occurred after a court hearing for a Minnesota man charged with trying to travel to Syria to join the Islamic State group.

The complaint also details another incident during which a group of men appeared to be “casing” areas inside the Federal Courthouse, but it could not be confirmed that Abdulkadir was a member of that group.

Abdulkadir has been ordered held without bail until his next court hearing.