German authorities have arrested three teenagers aged 15 and 16 on suspicion of plotting a deadly Islamist terrorist attack in the western German state of North Rhine-Westphalia, prosecutors said on Friday. The state’s Central Office for the Prosecution of Terrorism (ZenTer NRW) sought an arrest warrant for the teenagers over the Easter holiday. The detained suspects are a 15-year-old girl from Dusseldorf, a 15-year-old boy from the Märkischer Kreis district and a 16-year-old girl from the Soest district, located about 100 kilometres to the east of Dusseldorf. According to investigators, the t…