One person was killed after an explosion at an Istanbul subway station that was apparently triggered by a power transformer on Tuesday, Turkey's Haberturk TV said. Istanbul Police say cause of blast near metro station still unknown and investigations are still underway. A municipal official told Reuters that train operations had been suspended at the Bayrampasa metro station after a loud noise was heard. Meanwhile, Turkey's private NTV television says an explosion at an Istanbul metro station has caused some injuries. The cause of the explosion wasn't immediately known. Subway services in Istanbul have been halted on the entire network. The state-run Anadolu Agency said the explosion occurred at an overpass near the station, not in the station. More details awaited. (with inputs from AP)
