(ANSA-AFP) - BERLIN, APR 4 - German lawmakers said Tuesday that they would seek to open an investigation into Chancellor Olaf Scholz's possible involvement as mayor of Hamburg in a tax fraud scam that cost the government millions of euros. The probe would look at whether political figures helped the private bank M.M. Warburg to avoid paying back falsely claimed tax rebates in Hamburg, MPs from the conservative CDU and CSU parties said at a press conference. The inquiry would also look at whether Scholz's previous statements in relation to the scam were "believable", said Mathias Middelberg, deputy leader of the conservative group in the Bundestag. Scholz, who was mayor of Hamburg from 2011 to 2018, has repeatedly been forced to reject allegations he was involved in the decision to let the bank off the hook. The chancellor is already facing a similar parliamentary inquiry in Hamburg, one of Germany's 16 federal states. (ANSA-AFP).