On November 28th, shortly before 4:00 A.M., officers from the North Precinct responded to a 911 call of a home invasion robbery in the 13500 Block of Linden Avenue North.  According to the victims, an unknown male and female broke into the apartment and demanded the cash box from the victims.  The victims stated that while they did not know the suspects, the suspects knew details about the victims.  It is believed that the suspects were armed with a gun.  The suspects fled the scene in an unknown direction, possibly in a vehicle.  SPD’s Robbery Unit was notified and will be responsible for the follow up investigation.