Maryland August 21, 2024 11:37 am Students head back to school in Frederick County There are more enrollment opportunities for pre-K in Frederick County Public Schools in Maryland, but class sizes in the district have increased. News4’s Juliana Valencia reports. Local 1:49 Hotel agrees to increase security after string of crimes 1:43 Residents displaced from Columbia Heights apartment building after explosion 2:40 Thousands of DC bus lane tickets going unpaid 22:10 Apartment building closed after explosion: The News4 Rundown 3:12 Missing Manassas Park mom's husband denied bond