A MARTA bus driver was robbed at gunpoint while he was having vehicle trouble Tuesday morning, officials said.

The driver pulled over to the side of I-285 South between Chamblee Tucker Road and Northlake Parkway around 1:30 a.m. to wait for help, according to MARTA spokeswoman Stephany Fisher. Police for the transit agency said a person pulled up beside the bus and robbed the driver at gunpoint.

“The bus driver was not injured and there were no passengers on board the bus,” Fisher said in an email. “MARTA police are investigating.”

The bus was not in service at the time. MARTA police told AJC.com no further details would be released as the investigation is ongoing.

In other news: 

Video shows a baby fall to the ground during the incident. We want to warn you it is tough to watch at times.