LONDON ? Two Iranian actors and musicians who starred in a film at this year's Cannes film festival are seeking asylum in Britain after a member of their band was arrested in Iran, a report said Saturday.

Ashkan Kooshanejad, 24, and his girlfriend Negar Shaghaghi, 23, were chosen for leading roles in acclaimed director Bahman Ghobadi's film "No One Knows About Persian Cats," about Tehran's illegal underground music scene.

They came to Britain in January on six-month artist's visas to promote the film but they told the Independent newspaper they feared they would also be arrested if they returned home following President Mahmoud Ahmadinejad's disputed re-election.

Kooshanejad said Ali Ghomashchi, the 25-year-old drummer in his band, was arrested days after returning to Iran to be with his family after hearing his sister had been beaten up during the post-election opposition demonstrations.

"We haven't heard from him for several weeks, neither have his family, they haven't been told where he is being held or what he has been charged with," he told the newspaper.

They had hoped opposition challenger Mir Hossein Mousavi would win the election, believing it would have made it easier for them to return to Iran in July and renew their visas to return to Europe.

Kooshanejad and Shaghaghi said they had previously been beaten and imprisoned in Iran for putting on a concert.

They, and two other band members, will make their case for asylum in an interview with Britain's interior ministry on Monday.

Their lawyer Ali Rahimi believes they have a strong chance of success.

"It is a very risky proposition for them to return to Iran now ? they are likely to face prosecution and the arrest of their drummer supports this fact. Their involvement with Ghobadi makes this a high-profile case.

"Their involvement in the music scene and the dangers they face because of it makes this very unusual," he told the Independent.

Shaghaghi added: "The [Iranian] government has realized that artists are capable of influencing the masses and especially the youth. That's why they are tracking us down, they are afraid of us."