Turkish police on Sunday detained at least 50 people, including a journalist, during a Gay Pride event in Istanbul that went ahead despite a ban by local authorities and the lockdown of the city’s main gathering point, organisers said. Police stepped up security around Istanbul’s famed Taksim Square, erecting iron barriers, while local officials banned demonstrations in key rallying areas, including the Asian-side district of Kadikoy. The governor’s office also restricted subway transport in...