The persons responsible for the pollution are facing prison terms of up to six years and Grigeo Klaipeda is facing a fine of up to 5 million euros, Gina Skersinskyte, a prosecutor from Klaipeda District Prosecutor's Office told a press conference on Thursday, adding that the last procedural actions are being taken and the case could soon be handed over to court.

It’s too soon to speak about specific punishments for Grigeo executives and employees responsible for the pollution but the criminal acts they are suspected of are punishable with prison terms of up to six years, she said.

"Sentences within these boundaries will be asked for them," the prosecutor said.

Which suspects will stand trial and whether Gintautas Pangonis, the main shareholder of the Grigeo group will be among them will be known after the case reaches court.

Skersinskyte said nine is the final number of suspects in this case and they include eight natural persons and Grigeo Klaipeda.

Damage done to nature is also yet to be calculated, the prosecutor said, adding that it's the main dispute object.

The Grigeo Klaipeda pollution scandal broke out last January when prosecutors launched a pre-trial investigation over the release of untreated waste waters into the Curonian Lagoon.