A 3-month-old killer whale at SeaWorld has died after suffering from an infection over the weekend, the marine park announced. She was the last whale to be born since SeaWorld discontinued its breeding program.

Kyara, who was born in April, died at San Antonios SeaWorld park on Monday after showing signs of pneumonia, SeaWorld said in a statement.

Despite (the staffs) best efforts, her health continued to decline and she passed away earlier today,the statement read. The veterinary team will conduct a full post mortem examination to determine the cause of death. It may take several weeks before results are finalized.

The park said that pneumonia is one of the most common causes of morbidity or illness in whales and dolphins, both in the wild and in aquariums.

Over the last 30 years, nearly 150 sea lions, beluga whales, orcas and other dolphins have died from infections at SeaWorlds three parks in Orlando, San Antonio and San Diego, San Antonios Express-News reported.

Back in 2015, three killer whales died from infections at the San Antonio park. Earlier this year, the orca named Tilikum, whose involvement in a trainers death inspired the anti-SeaWorld documentary Blackfish, died after suffering from an infection at SeaWorld Orlando.

Kyaras death is particularly significant, since the park announced in March 2016 that it would be ending its breeding program. The decision followed public backlash after the 2013 release of Blackfish.