11.   However, Transport Minister Suleiman Metwally issued a statement saying an initial investigation indicated the engineer on the rear train failed to obey a stop signal.

12.   In addition to twice running stop signals, DeCurtis derailed once and missed a station once.

13.   Italian news reported suggested the express might have ignored a stop signal at Castello station.

14.   No one was hurt the first two times commuter train engineer John DeCurtis went past stop signals.

15.   Somehow these cancer cells were blocking the stop signal and were continuing to divide with much shorter telomeres than are found in normal cells.

16.   The crash was under investigation, and it was not yet clear why the train driver did not see the stop signal.

17.   Two trains collided head-on Saturday west of Vienna after the driver of one overlooked a stop signal, Red Cross officials said.

18.   Newspapers speculated that the driver of the passenger train may have ignored a stop signal and smashed into the slow-moving freight train.

19.   Police blamed careless driving, saying the bus driver failed to heed a stop signal.

20.   Sharief said the driver of the empty goods train had apparently disregarded a stop signal on the single track line.