Lewis and some of the children he mentors at his program, Inspired by Lewis.

Corey Lewis was finishing up lunch at Subway while babysitting Sunday, when he says a white woman started to harass and follow him, then called the police — all because he was black and the children he was with are white.

Lewis, 27, runs a youth mentorship program in Marietta, Georgia, and was watching the children of David Parker and Dana Mango that afternoon. Their 6-year-old son attends Lewis's after-school program, dubbed Inspired by Lewis, Parker told BuzzFeed News.

As they were finishing their sandwiches outside Subway, which is located in a Walmart in Marietta, Lewis said, the woman came up to his car to ask "if the kids were alright." The girl was already in the backseat and they were waiting for her younger brother to finish up his food so he wouldn't get crumbs in the car, Lewis explained to BuzzFeed News.

"I was taken aback and responded, 'Why wouldn't they be?'" Lewis said. "She told me 'it looked weird,' and I was like, 'They're fine.'"

The woman left, circled the parking lot in her car, and then returned to Lewis's blue Honda Accord.

"She then asked if the little girl could get out of the car so she could ask her if she knew who I was," he went on. "And I said no and she got upset and threatened to take down my license plate and call the cops. I said OK and she drove off."

A few minutes later, the boy finished his sandwich and the three drove across the street to get gas. The woman, Lewis said, tailed their car and again parked nearby.

In disbelief, the youth mentor pulled out his phone and began streaming video of the incident live on Facebook, capturing the woman idling near them in her sedan.

"She asked to see the little girl that I am with so she can ask her if she knows who I am," he narrated. "All because I got two kids in the backseat who do not look like me... It's crazy. It's 2018 and this is what I have to deal with. I can't go out with two kids who don't look like me without it being weird."