**SAN FRANCISCO** – A major emergency response is underway at 595 John Muir Drive in San Francisco this afternoon following a high-impact collision involving a San Francisco Municipal Railway (Muni) bus and multiple passenger vehicles.

First responders were dispatched to the scene shortly after 1:00 p.m. following reports of a multi-vehicle crash. Upon arrival, emergency crews confirmed that at least one individual remains trapped inside a vehicle, necessitating a complex extrication operation.

San Francisco Fire Department personnel are currently utilizing heavy rescue tools to stabilize the scene and gain access to the trapped victim. The exact condition of the trapped individual has not yet been released, though paramedics are standing by to provide immediate medical attention once the person is freed.

Witnesses at the scene describe a chaotic environment near the intersection, which serves as a major thoroughfare for traffic near Lake Merced. Several other individuals are being evaluated by medical personnel for potential injuries, though the full extent of the casualties remains under investigation.

The San Francisco Police Department has closed off a significant portion of John Muir Drive to facilitate the rescue effort and permit accident reconstruction teams to begin their work. Commuters are being urged to avoid the area and seek alternative routes, as heavy traffic congestion is expected to persist throughout the afternoon.

Muni officials have not yet issued a statement regarding the specific bus line involved or the circumstances leading up to the collision.

The cause of the crash remains under active investigation. Further updates will be provided as emergency crews clear the scene and authorities confirm the details surrounding the incident.