What form that takes is unclear, but law enforcement is stepping up its watches.
Reutersreported Wednesday that former Hamas leader Khaled Meshaal called for a Day of Jihad on Friday the 13th.
The LAPD has since announced an uptick in patrols especially in Jewish and Muslim communities for Friday.
SAG-AFTRA members and supporters picket outside Netflix studiosMario Tama/Getty Images
New York police are also on high alert.
