MTV UNPLUGGED, R.E.M., Sinead O’Connor, (Season 1, episode 106, aired March 18, 1990), 1989-. ph: ©MTV / courtesy Everett Collection

Sinead O’Connor‘s official cause of death has been revealed.

The singer’s death certificate lists that she died from chronic obstructive pulmonary disease and asthma. The certificate was reportedly registered by the late Grammy winner’s husband, John Reynolds, in London on Wednesday.

O’Connor died at age 56 in her London home on July 26, 2023, where authorities said she was found “unresponsive.”