Three Lynchburg police officers were slightly injured when two police cars crashed Saturday morning.  It happened around 8 a.m. at the intersection of Biltmore and Fort Avenues.   Police were responding to a call with their emergency lights and sirens activated. The three officers were treated for minor injuries.    This marks was the second collision in  a week between Lynchburg police vehicles. One officer was treated for minor injuries after Thursday’s crash involving two city police vehicles.