Three Chechen men who sparked a massive police search in the northern German city of Hamburg after being overheard allegedly planning an attack are in custody, authorities said on Friday. Hamburg police chief Reinhard Chedor said one of the men was arrested and the other two had turned themselves in. "I do not believe at the moment that there were any real plans for an attack," Chedor told a press conference.The men are aged from 21 to 25. Chedor said he was convinced that the three were the suspects caught on film by a surveillance camera boarding a bus in Hamburg on Wednesday. According to a police spokesperson, the three men were overheard by what is being referred to as a "credible source" at the Holstenstrasse bus stop near a local railway station in the Altona district of the city. The witness told police he heard one of the men use the phrase "Tomorrow we will stand as heroes before Allah" before the three suspects boarded a bus heading away from the city center.