Thousands flee Khartoum as White House demands ceasefire

Read MoreThe White House has demanded that warring parties in Sudan adhere to an immediate ceasefire. Thousands continue to flee Sudan amid escalating violence. Imtiaz Tyab reports.The White House has demanded that warring parties in Sudan adhere to an immediate ceasefire. Thousands continue to flee Sudan amid escalating violence. Imtiaz Tyab reports.