A motorist killed Tuesday when the minivan he was driving ran off the road and plowed into a building in southeast Atlanta might have died of a heart attack or other medical condition, police said.

According to Atlanta police dispatchers, the incident happened on McDonough Boulevard near Hank Aaron Drive.

The van struck a building that houses a recycling company.

The 61-year-old driver was not breathing or responding when rescue personnel arrived, and was pronounced dead just before 8 a.m., according to dispatchers.

"It seems as though the person may have died as a result of a heart attack or something else, not the accident," police spokeswoman Kim Jones told the AJC.