Footage captured on Friday shows mourners grieving and holding framed and laminated portraits of the princess at a mourning area at Bangkok's King Chulalongkorn Memorial Hospital.

Widely known as Princess Bha, she collapsed while training dogs for an army exhibition in Nakhon Ratchasima province in December 2022. The palace later said she had suffered a severe heart arrhythmia following a mycoplasma infection.

Thailand people mourn Princess Bajrakitiyabha. Video by Viory

The Princess had remained in a coma ever since – more than three years – receiving treatment at King Chulalongkorn Memorial Hospital.

A palace update in May said doctors had detected an abdominal infection caused by inflammation of the large intestine. Her condition had become unstable, with low blood pressure, an irregular heartbeat and blood‑clotting abnormalities.