COMMUNITY ADVISORY: Reports of Increased Harassment Targeting New Jersey Mosques 

(07/17/26 — NEWARK, NJ) — The New Jersey chapter of the Council on American-Islamic Relations (CAIR-NJ) is advising mosques, Islamic centers and other Muslim-identifying institutions across New Jersey to be vigilant amid an increase in reported harassment.  

In recent days, four different mosques in New Jersey have reported targeted harassment to CAIR-NJ – including phone calls, hate mail, and physical intimidation. Just this morning, we were alerted by authorities to 6 additional mosques receiving targeted harassment.  

If you or your mosque has been subject to any anti-Muslim harassment, big or small, report it to CAIR-NJ and immediately file a police report. If the caller has a 551 area code, please note that in your report.  

SEE: CAIR’s Muslim Community Safety Kit 

Best practices for mosque security: 

  • Build good relationships with neighbors of the mosque. Invite them to visit your center. 
  • Try to have people attend the mosque as much as possible. Activity deters perpetrators. 
  • Make an appointment with the community relations officer of your local police department to tour your center and make suggestions on improving mosque security. 
  • Request additional police patrols in the vicinity of your center. Special attention should be paid to times of darkness and during prayers. 
  • Consider creating a security committee at your mosque. 
  • Post mosque members at entrances and parking areas during prayer times. 
  • Report suspicious packages to police. Do not touch them. 
  • Install perimeter floodlights outside the mosque. 
  • Install fire and burglar alarm systems. 
  • Replace hollow core doors with more secure solid doors. 
  • Install burglarproof bars on screens and large vents. (Note – Research local ordinances before beginning security renovations. For example, window bars should not limit  evacuation in case of fire.) 
  • Trim shrubs and vines to reduce areas of concealment. 
  • Participate in neighborhood watch programs. 
  • Document descriptions of suspicious people or vehicles. 
  • Make duplicates of all important papers, computer disks and records. 
  • Remove potential fire hazards, such as trash and debris. 
  • Consider installing security cameras. 

Responding to bomb threats 

  • Distribute written instructions on handling bomb threats. 
  • Keep the caller on the line as long as possible. Ask that the message be repeated. Record or write down everything that is said. 
  • Ask for the location of the bomb. 
  • Inform the caller that the detonation of a bomb could hurt many innocent people. 
  • Pay attention to background noises such as music, which may give a clue to the caller’s location. 
  • Listen closely to the caller’s voice. Make note of accents, voice quality (calm, excited) or speech impediments. 
  • Report the threat immediately to the local police, ATF and FBI. Have appropriate phone numbers listed in written instructions. 
  • If the threat comes in the form of a letter, save all materials, including the envelope. Handle the letter as little as possible. 
  • Search the interior and exterior of the mosque. Evacuate the building if a suspicious package or device is found. 

Suspect letters and packages 

What to look for: 

  • Name and title of addressee are not accurate. 
  • No return address, or the sender is not known to the addressee. 
  • Handwriting is distorted. 
  • Unprofessionally wrapped, uneven, bulky, lopsided. 
  • Contains bulges or soft spots. 
  • Poorly wrapped package is marked “Fragile: Handle With Care,” “Rush,” or has unusual restrictions such as “Personal” or “Private.” 
  • Excess amount of postage. 
  • Protruding wires or tin foil. 
  • Package makes a buzzing or ticking noise, a sloshing sound, or emits an odor. 

What to do: 

  • DON’T open the package or letter. 
  • DON’T put it in water or in a confined space such as a drawer. 
  • DO isolate the article and secure the immediate area. 
  • DO open windows if possible to help vent potential explosive gases. 
  • DO contact your local police department and postal inspector.

CAIR’s mission is to protect civil rights, enhance understanding of Islam, promote justice, and empower American Muslims.