PHILADELPHIA - Police are investigating after they say a semi-automatic weapon was discharged on a West Philadelphia street Tuesday morning, sending one man to the hospital.The victim, a 40-year-old man, was reportedly struck in the chest near Landsdowne and Edgewood streets around 1:30 a.m.He was transported to a local hospital, where he is in critical condition and undergoing surgery.Gunfire from the semi-automatic weapon also struck a vehicle, according to police.MORE HEADLINES:Police say they are investigating the same suspect for domestic violence at the same intersection..