For the second time in less than a month, a Metro bus driver was stabbed in Los Angeles.

The June 22 incident occurred on the 1700 block of Main Street in Venice, with the driver stabbed in the back while checking the exterior of the bus.

LAPD identified the suspect as 60-year-old Mark Charbonneaux and made an arrest on-scene for assault with a deadly weapon.

The driver was transported to a local hospital and reportedly in stable condition for what police called an unprovoked attack with a 4-inch folding knife that was found and recovered by police.

On Monday, LAPD released a bulletin regarding Metro safety, saying it increased patrol car visibility near Metro properties over the years and focused on partnerships with mental health professionals.

“The Department remains dedicated to the safety and welfare of all MTA passengers and employees,” the bulletin said. “The goal of the LAPD is to deter criminal activity, maintain order, and enhance the safety and security on the system, while simultaneously addressing complex and challenging social issues by providing support and services to those in need within the transit environment.”

The stabbing occurred less than a month after a Metro bus driver was repeatedly stabbed in the chest  by a 17-year-old rider in Woodland Hills. The driver was in critical condition and the suspect was arrested two days later.

After the May stabbing, LAPD Chief Michel Moore said he feared the possibility of copycat incidents.

“We’re always concerned that when you have an extraordinary event like this, that there may be others that may feel that it’s open season, or that there’s somehow an allowance for this,” Moore said in a statement. “I can only assure those that would feel that this is an opportunity for them, that there’s no such opportunity. There is zero tolerance for violence on a bus.”

In April, 25-year-old Luis Fernando Polita was stabbed to death outside a Metro Blue Line in Long Beach, with a man believed to be the third and final suspect arrested at LAX on June 20.