Invision/AP 1 / 5

ET Online

Liam Neeson's nephew Ronan Sexton, 31, is in critical condition after suffering a fall during a night out with friends, The Telegraph reports.

According to the British newspaper, Sexton suffered serious head injuries after falling 20ft from the top of a telephone box in Brighton, East Sussex. He was scaling the telephone kiosk next to the pier on the seaside town's promenade before falling at about 4 a.m. last Sunday, police said.

Video: Liam Neeson Opens Up About His Wife's Death

Neeson, 62, suffered his own tragic loss in 2009 when his wife, actress Natasha Richardson, died of a brain injury after a skiing accident in Quebec, Canada.

She was just 45 years old.

"[Her death] was never real. It still kind of isn't," Neeson told Anderson Cooper about still grieving for his late wife during a sit-down for 60 Minutes in February. "There's periods now in our New York residence when I hear the door opening -- especially the first couple of years -- anytime I hear that door opening, I still think I'm going to hear her."

Ronan is the son of Neeson's sister, Bernadette Sexton.

Pics: Stars in the Hospital

Police have confirmed that the accident was not suspicious. He is currently being treated at Hurstwood Park Hospital in West Sussex.


The best hospital selfies of stars

Most awkward people on the red carpet

Insured celeb body parts