A longtime MTA employee has died after being struck by a bus at a bus depot for the transit agency in Queens, the second MTA employee to die on the job in a week.

Authorities said Stephen Livecchi, 59, was struck around 10 a.m. Tuesday at the depot on 28th Ave. in College Point. The employee was pronounced dead at the scene.

A source said the 37-year veteran of the MTA was working in the depot just before 10 a.m. when a bus backing up ran over him and then drove forward, accidentally running over him again. The driver of the bus is 56 years old and has been with the MTA for nearly two decades. She was not immediately charged.

"At that point in time, it's right after rush hour, so buses are coming in, maintenance operations are taking place, so there is quite a bit of activity at that point of time," MTA Bus President Darryl Irick said at a press conference.

"He was doing a myriad of different tasks that are part of his job when it happened," Irick added. The MTA said Livecchi's duties at the depot included directing bus movement around the yard.

Officials said the investigation will include whether an alarm that is supposed to sound when a bus backs up functioned. They also hope surveillance video from the depot's cameras will help explain what happened.

Livecchi's death follows that of MTA track worker St. Clair Richards-Stephens on March 20. The 23-year-old Bronx man was working in the tunnel beneath Lexington Avenue at 125th Street when a wooden railing gave way and he fell onto the tracks.

The president of Transport Workers Union Local 100 said in a statement, "This is a very sad time for all of us. As we are mourning the death of a young track worker, another member of our union has been killed in what appears to be a tragic accident. We will conduct a thorough investigation to determine what happened. We will close ranks around the family and do whatever we can for them."

Livecchi's death brings the number of New York City Transit workers killed on the job to five since 2014.