11:48 09 September 2009
James Allan, the lead singer and rhythmic guitarist of alternative band Glasvegas, has been missing for five days, according to his bandmates.
The Scottish band were due to play the Mercury Prize awards show on Tuesday night, but had to cancel their performance after they were unable to get in touch with him.
The group hasn't heard from Allan since last Friday, when the band flew back home to Glasgow after a gig in Italy.
Speaking at the awards, guitarist Rab Allan told the Guardian: "He probably needed some time out. He's been working really hard on the new album, but we don't know where he is right now.
"At first we thought he'd just gone AWOL for a bit or that he was not feeling well. Now we just really want to hear from him."
Glasvegas exploded onto the music scene when they released their self-titled debut album in 2008 and won plaudits both critically and commercially.
Allan's disappearance comes at an unfortunate time for Glasvegas. They are expected to fly to America this week to support Kings of Leon on tour.
The band have since stated that they do not know if they will be able to go ahead with the tour.
Despite Allan's absence, the three remaining Glasvegas members did attend the Mercury show, which was won by south London rapper Speech Debelle.