Prince George’s County fire investigators have declared four of 11 recent fires at the Springhill Lake Complex in Greenbelt to be arson and three others as “suspicious,” according to fire spokesman Mark Brady.

“We have increased patrols in that area, and we are of course working with management,” Greenbelt police spokesman George Mathews said. “…We are talking about [the safety of] individuals in these apartments, and they are in danger when we have this type of activity.”