Musician Robin Gibb of the pop group the Bee Gees has woken from his coma after more than a week of unconsciousness, according to reports.

He was communicating with his family from his bed at a London hospital, where they have been a constant presence since he fell gravely ill last week.

Spokesperson Doug Wright gave no other details, the Agence France-Presse news agency said. 

Gibb's coma was brought on by pneumonia, but he is thought to be suffering from colon and liver cancer.

He was hospitalized last year with stomach and bowel problems before announcing in February that he had made a "spectacular" recovery. However, he was too ill to attend the world premiere of his first classical composition, The Titanic Requiem, in London earlier this month.

The Bee Gees — British-born, Australian-raised brothers Robin, Barry and Maurice Gibb — had a string of disco-era hits including How Deep Is Your Love and Stayin' Alive. Their soundtrack to the movie Saturday Night Fever was one of the best-selling albums of the 1970s.

Maurice Gibb, Robin's twin brother, died in 2003 at age 53 due to complications from a twisted intestine.