Authorities have arrested five self-described anarchists in Cleveland for allegedly plotting to blow up a bridge but the group was monitored as part of an undercover FBI operation, a U.S. Justice Department official said on Tuesday.


The group had no ties to foreign terrorist organizations and the plot was not connected to the anniversary of the death of al Qaeda leader Osama bin Laden, who was killed in a raid by U.S. forces a year ago, the official said.


Additional details about the plot were not immediately available.


Cleveland's 19 Action News posted images of the five men arrested to its Facebook page: