Campaigning actress Mia Farrow has pledged to do all she can to help quash the uprising in the war-torn Darfur region of Sudan. The Hollywood star is in the African country with her teenage son RONAN as part of her duties as a goodwill ambassador for the United Nations Children's Fund (Unicef). Farrow met a handful of the 2.4 million people who have been displaced by fighting in the country, as well as Sudanese officials and aid workers. And the 61-year-old ROSEMARY'S BABY actress has promised to stress the seriousness of the situation to UN officials. She says, "We were hearing that there were no child soldiers but it was very clear that there were. We saw them carrying guns right there with the adults. "The powerful people I am going to meet know full well what is happening here and that is part of the tragedy. "There are always reasons for caution, for not wanting to get involved. I do understand those reasons, I just don't agree with them."