A killer whale calf that was the last to be born in captivity under SeaWorld’s now-shuttered orca-breeding program died Monday at the company’s San Antonio park.

Kyara, a 3-month-old orca calf who was born to mother Takara in April, came down with ‘‘very serious and progressive health issues’’ over the past week, SeaWorld said.

Although Kyara’s ailment was ‘‘likely pneumonia,’’ an official cause of death may not be available for several weeks.

With the loss of Kyara, SeaWorld now has 22 orcas at its Orlando, San Antonio, and San Diego facilities, a company spokeswoman said.

SeaWorld has tried to retool its image and many of its programs after an outcry following a tragic 2010 incident in which a male orca, Tilikum, killed a trainer in front of park visitors at SeaWorld Orlando. Three years later, the documentary ‘‘Blackfish’’ sparked another, more intense wave of public backlash against the park.

Last March, SeaWorld announced it would immediately end its captive-breeding program for orcas and begin phasing out its killer whale performances.

Kyara was conceived before the announcement.

washington post