The lawsuit was received on Jan. 29, Siemens Energy Chief Executive Christian Bruch told journalists in a call following fiscal first-quarter results, adding the group would now carefully assess the claims.

Bruch confirmed that the case, made public last month, was initially uncovered by Siemens Energy, adding the firm already pointed to it in its listing prospectus dated Sept. 7.

(Reporting by Christoph Steitz; editing by Thomas Seythal)