The Hyderabad police have arrested a Chinese national as part of its ongoing investigation into a multi-crore online loan scam involving a large network of companies that charged interest as high as 36 per cent from their victims, and then harassed its borrowers. Chinese national Zhu Wei (alias Lambo) was intercepted at the Delhi Airport on Wednesday when he was trying to leave the country. The 27-year-old, who belongs to China's Jiangxi province, was arrested today, the police said.