Grant Imahara, the former co-host of scientific TV show Mythbusters, has died at the age of 49.

The electrical engineer and roboticist died suddenly following a brain aneurysm.

Imahara was known for making special effects models for films such as Galaxy Quest, The Lost World: Jurassic Park, The Matrix sequels and the Star Wars prequels.

He also starred in the Netflix series White Rabbit Project.

Mythbusters co-host Adam Savage paid tribute to the star, posting: "I’m at a loss. No words. I’ve been part of two big families with Grant Imahara over the last 22 years.

"Grant was a truly brilliant engineer, artist and performer, but also just such a generous, easygoing, and gentle PERSON. Working with Grant was so much fun. I’ll miss my friend."

The Discovery channel, which aired Mythbusters, added: "We are heartbroken to hear the sad news about Grant.

"He was an important part of our Discovery family and a really wonderful man. Our thoughts and prayers go out to his family."

And fellow Mythbusters and White Rabbit Project presenter Kari Bryon said: "Somedays I wish I had a time machine."