Here’s the US embassy’s statement - they’re short-staffed due to the security situation and have temporarily suspended visa processing.

American Citizen Services | Embassy of the United States

Due to the current security situation in Tel Aviv, U.S. Embassy Tel Aviv remains open but is operating at reduced staffing until further notice, and has canceled routine visa application processing and American Citizen services. Emergencies involving an American citizen and visa applications will be considered on a case by case basis. If you had a scheduled visa appointment, you will receive an email informing you of the appointment cancellation, and another email with a new scheduled appointment. If the appointment is not convenient for you, you may reschedule your appointment through the scheduling system. You are not required to pay a new fee. We will update the website and our facebook on any developments. To ask for an emergency appointment, please email NIVTelAviv@state.gov (for visas) or AMCTelAviv@state.gov (for U.S. Citizens Services) and explain the nature of your emergency. We will respond to your email quickly with additional instructions.