Max Halliwell and Geri Halliwell.Photo: Dave M. Benett/Getty; Chris Jackson/Getty

Max Halliwell, Geri Halliwell

Geri Halliwellis mourning the sudden death of her brother.

On Tuesday, the formerSpice Girls' older brother, Max Halliwell, died in intensive care after suddenly collapsing in his home in Berkhamsted, Hertfordshire, last week, PEOPLE can confirm. Max was 54.

“As you can imagine this is a difficult time and we would ask that you respect the family’s privacy at this time,” Geri’s rep said in a statement.

Max, a former communications manager for Mitsubishi Electric Living Environmental Systems UK, was taken to Watford General Hospital after being found at his home, according toThe Sun, which first reported his death.

“His death is being treated as non-suspicious and will be referred to the coroner,” a Hertfordshire Constabulary spokeswomen told the outlet.

Geri, 49, was in the Middle East with her husband, Formula One team principalChristian Horner, as he prepared for the Qatar Grand Prix last weekend when she learned the news of her brother’s condition.

RELATED VIDEO: Geri Halliwell Reflects on How She First Joined the Spice Girls

In 2010, Max appeared onPiers Morgan’s Life Storiesand looked back on their earlier years, saying his sister “doted heavily on her father.”

“Maybe because of the attention that my father gave her as regards to her potential,” he said. “He obviously saw something early on, so I’d call her a bit of a daddy’s girl, definitely.”

Their father, Lawrence, died after a heart attack in 1993.

The former pop star opened up in the BBC documentaryGeri’s 1990s: My Drive to Freedomabout how that devastating loss, three years before “Wannabe” propelled the Spice Girls to stardom, sparked her desire to succeed.

“I have this theory, I don’t know if it’s true, but I think success comes from three things,” she said. “One is preparation, one is opportunity and one is need. I think my father’s death gave me the need, that death energy.”

source: people.com