New Delhi/Bengaluru: Senior Karnataka Congress leader and party troubleshooter DK Shivakumar, who was being investigated in the event of supposed money laundering, was detained on Tuesday night. The Enforcement Directorate, which has been questioning him for the last four days, said that he did not cooperate with the inquiry and that he needs to be questioned while in custody. Mr Shivakumar is spent the night at the Ram Manohar Lohia Hospital, where he was brought by the Enforcement Directorate for a medical check up. The ED will produce him in court on Wednesday to seek his custody.