The German Bundestag on Thursday revoked the immunity of controversial far-right politician Maximilian Krah as authorities intensified a corruption probe.

A spokesperson from the Dresden Public Prosecutor’s Office told POLITICO that it was investigating “a member of the German Bundestag” over money-laundering and corruption, involving payments from China.

Krah, who is a prominent figure within the Alternative for Germany party, has served as a member of the German parliament since February’s federal election. Before that he was an MEP in Brussels, where he was investigated in a China espionage probe.