Republican National Convention in Milwaukee has law enforcement on heightened awareness

Federal, state and local law enforcement officials are on high alert ahead of the Republican National Convention that will kick off in Milwaukee on Monday.

A joint threat assessment created by the FBI, U.S. Secret Service, the Milwaukee Police Department and the Milwaukee Southeastern Wisconsin Threat Analysis Center was sent out to law enforcement officials in anticipation of the RNC, calling for heightened awareness.

No credible or specific threat was identified in the assessment, a law enforcement source told CBS News on Saturday.