FBI agents walk past a makeshift memorial for Michael Brown Saturday, Aug. 16, 2014.
Two men who allegedly purchased explosives to use in pipe bombs that they planned to set off during protests in Ferguson, Missouri were arraigned Friday in federal court.
The FBI arrested the unidentified men, who are supposedly members of the new Black Panthers, according to CBS, on Thursday as part of an undercover operation.
The St. Louis area residents were arrested on outstanding warrants, FBI spokeswoman Rebecca Wu told CBS.
The arrests come as Ferguson nervously awaits a grand jury decision on whether to indict the white police officer who shot and killed unarmed black teen Michael Brown on Aug. 9. Police Officer Darren Wilson has been on paid administrative leave since the shooting, which has prompted months of protests.
Many expect demonstrators to come out en masse following the grand jury announcement. As a result, the FBI has deployed 100 agents and the St. Louis County Police Department has stocked up on 650 teargas grenades, 2,000 plastic handcuffs and 6,000 pepper balls, according to ABC. Police officers have also received 5,000 hours of additional training.
However, St. Louis authorities and protest leaders did announce Fridayagreed-upon "rules of engagement," which include limiting the use of teargas and rubber bullets and open channels of communication between police and protesters to deescalate heated situations.
Tags: MISSOURI, PROTESTS IN FERGUSON, U.S., US & World