BARRIO (CBC) – A beluga whale and a bottlenose dolphin have died at Marineland in Niagara Falls, according to Ontario’s Ministry of the Solicitor General.

Marineland hasn’t responded to questions from CBC, but ministry spokesperson Brent Ross said in an email that Marineland advised Animal Welfare Services (AWS) that necropsies of both animals were conducted by professionals. 

That marks three reported deaths of marine animals at the theme park in two months.

Kiska, the last captive killer whale in Canada, died in March.

The deaths have animal rights groups and activists concerned.

“This is something that needs immediate intervention,” said Phil Demers, a former Marineland trainer-turned-whistleblower.