PRINCE GEORGE'S COUNTY, Md. (DC News Now) -- A diesel fuel tanker overturned in Glenarden Wednesday night. (Courtesy: Prince George's County Fire and EMS Department) Just before 9 p.m., the Prince George's County Fire and EMS Department (PGFD) said its Hazmat crews are working with the Marylan d Department of the Environment on Martin Luther King Jr. Highway after a diesel fuel tanker toppled over. Frederick County conducts child care survey to address accessibility, quality concerns According to PGFD, the product is contained but there will be significant delays in the area for drivers. Everyone is asked to be on alert as emergency units continue to work at the scene. ...read more read less