Detectives launched a large-scale manhunt across Berlin on Friday after a stabbing at the city's Holocaust memorial, two days before the country’s national elections.Three hours after the incident, officers sweeping through streets near the scene came upon an unidentified man whose hands were covered in blood,

The police said they had detained a suspect in the assault, which occurred among the labyrinth of concrete slabs at one of the German capital’s most sacrosanct sites.