(ANSA) - BELGRADE, 02 NOV - Davor Macura, a businessman close to Aleksandar Vučić's Serbian Progressive Party (SNS) and owner of Alta Banka, which was recently declared bankrupt, was detained overnight, according to Nova.rs reports. Police had previously spent more than 30 hours searching Alta Banka's offices, beginning on Saturday. In the early hours of Saturday morning, the Executive Board of the National Bank of Serbia revoked the bank's operating licence, effectively declaring it bankrupt. (ANSA).