American actor George Clooney has been arrested along with his father and several members of the US Congress while staging a protest outside Sudan's embassy in Washington.
The star and fellow activists were demanding that Sudanese government forces end an offensive in South Kordofan.
They defied warnings on Friday to leave the grounds of the mission in Washington's Embassy Row, leading officers to escort them in plastic handcuffs to a waiting police van.
Four members of the House of Representatives - Al Green, Jim McGovern, Jim Moran and John Olver - were also arrested at the protest, along with human rights activists and religious leaders.
Clooney, a longtime activist for human rights in Sudan, met US President Barack Obama on Thursday, after paying a clandestine visit to South Kordofan where aid groups say 250,000 people are at risk of imminent food shortages.
South Sudan became independent in July under a peace deal that ended two decades of war, initially raising hopes overseas for a peaceful resolution to the country's long-running conflicts.
But fresh violence broke out soon afterward in South Kordofan as the government fought insurgents tied to the former rebels who now rule South Sudan.