reporter: with rocks shattering the cab window but striking windows in the passenger compartment, nestel says it is fortunate neither engineer nor anyone else was hurt. >> thank god that engineer wasn't seriously injured. thank god somebody's dad, wasn't ending up in the hospital or killed. >> reporter: while the rock throwers who damaged this train has never been caught chief nestel says his officers are focusing their patrols in area where rock throwing is frequent. the deadly chain of events that the ntsb says likely started with this rock attack, a sad example of just how dangerous it can be. >> when a train is moving at 60 miles an hour and someone hurls a rock at it, someone is getting hurt. >> reporter: the chief told me that the actual number of rock attacks reported is relatively low but that is because many times there are attacks that unless they shattered the window of the train in one notices thinking it is just another noise outside. live from septa headquarters i'm walt hunter for cbs-3 "eyewitness news". >> thanks, wall. >>> wreckage from egyptair flight is found in the m

at 60 miles an hour and somebody holds a rock at it, someone is getting hurt. >> reporter: chief nestel says the actual number of rock attacks reported is relatively low. he believes that is because of unless the rocks shatter a window, many people aboard might just think it is noise that the train is making as it moves along the line. at septa headquarters i'm walt hunter for cbs-3 "eyewitness news". >>> new developments around egyptair flight 804, investigation into what brought it down. search crews have have found human remains, luggage and eats in the mediterranean sea. patrol boats boats with sonar are trying to locate the data recorders. meantime cbs news has learned that the jet transmitted messages that smoke was detect in the aircraft before the crash, raising questions about a possible in flight fire. sixty-six people were on board when the plane swerved wildly and disappeared from radar early thursday morning in route from paris to cairo. >>> officials say that federal agents found ammunition in a car believed to have been driven by a man who approached the white house check

reporter: with rocks shattering the cab window but striking windows in the passenger compartment, nestelit is fortunate neither engineer nor anyone else was hurt.