The second leak of mildly radioactive water at the controversial Temelin nuclear power plant within two weeks prompted Austria's opposition Wednesday to call on their government to speed up work on a lawsuit against the Czech Republic, according to dpa. Greens deputy chairman Eva Glawischnig urged the coalition to "at last finalize the lawsuit against the Czech Republic, which the government has delayed for weeks". The two right-wing opposition parties Freedom Party (FP) and Alliance for Austria's Future (BZ) also called for increased speed in preparing the lawsuit. Austrian environment ministry spokesman Daniel Knapp said the lawsuit was "in progress". "In view of this new incident within a few days, the safety structure in the plant gives rise to serious questions," Knapp told the Austrian press agency APA.