American Actress Sandra Bullock has lost her longtime partner Bryan Randall who died at aged 57 from ALS (amyotrophic lateral sclerosis), it has been announced.

The photographer, who Bullock described as ‘the love of my life’, died on the 5th of August, after a three-year battle with ALS, the most common form of motor neurone disease.

Randall’s family said that he had died on Saturday “after a three-year battle with ALS”. The statement added: “Bryan chose early to keep his journey with ALS private and those of us who cared for him did our best to honour his request.

We are immensely grateful to the tireless doctors who navigated the landscape of this illness with us and to the astounding nurses who became our roommates, often sacrificing their own families to be with ours.”

According to mayo clinic, ALS is a “nervous system disease that affects nerve cells in the brain and spinal cord.” The disease causes “loss of muscle control” and “gets worse over time.

ALS, also referred to as motor neurone disease in the UK and Lou Gehrig’s disease in the US, is a neurodegenerative disease that leads to loss of voluntary control over muscles, and for which has no cure.

Early signs and symptoms of the disease include tripping, dropping things, slurred or “thick” speech, difficulty swallowing, weight loss, decreased muscle tone, shortness of breath, increased or decreased reflexes and uncontrollable periods of laughing or crying.

The actress met the model-turned-photographer when he was hired to capture her son Louis’ birthday party in 2015.

The two started dating shortly after and were spotted out and about by paparazzi before they made their red carpet debut at the “Our Brand Is Crisis” premiere in Los Angeles in October of that year, according to Today

Together, the couple were parents to three children: Bullock’s adopted kids Louis Bardo and Laila, and a daughter Randall had from a previous relationship.