PORT-AU-PRINCE (Reuters) - Hollywood actress Angelina Jolie visited earthquake victims in Haiti on Tuesday in her latest trip to help survivors of conflict and natural disaster as a goodwill envoy for a United Nations agency.

Jolie, 34, who has been a goodwill ambassador for the U.N. refugee agency UNHCR since early 2001, traveled to quake-shattered Port-au-Prince after visiting injured Haitian children in a hospital on Monday in neighboring Dominican Republic.

The actress, who has been on numerous U.N. humanitarian missions to help refugees from more than 20 countries, was due to visit a hospital and other relief sites treating hundreds of thousands of hurt and homeless Haitian quake survivors.

The dark-haired Hollywood star, wearing a black jacket and aviator sunglasses, waved to reporters when she visited a U.N. base near Port-au-Prince airport, before she was driven away in a white U.N. vehicle.

UNHCR officials in Port-au-Prince told reporters her visit was "private."