By Associated Press
Updated March 14, 2012 at 03:23 PM EDT

Actor and human-rights activist George Clooney is highlighting the humanitarian crisis in the volatile border region between Sudan and South Sudan.

Clooney described a recent trip to the region where he and John Prendergast, the cofounder of the advocacy group the Enough Project, secretly traveled across the border and came under rocket attack.

Clooney filmed the death and destruction at burned-out villages, and met with residents forced to hide in mountain caves.

Their video went online shortly before Clooney testified before the Senate Foreign Relations Committee on Wednesday.

Clooney spoke to a few reporters before the hearing. He’s scheduled to meet with President Barack Obama and Secretary of State Hillary Rodham Clinton on Thursday.

South Sudan seceded from Sudan last year, but hostilities between the two sides continue.

Read more: