President Donald Trump asked Uganda to find the abductors of a U.S. tourist and her guide to reassure guests of security, even after the East African nation's leader said the incident is isolated and that the parks are safe.

"Uganda must find the kidnappers of the American tourist and guide before people feel safe in going there," Trump said Monday on Twitter.

Kimberly Sue Endicott and local guide, Jean Paul Mirenge, were abducted on April 2 in Queen Elizabeth National Park about 380 km (236 miles) west of the capital, Kampala. The park is a popular tourist destination because of its tree-climbing lions, hippopotamuses, elephants, and over 500 bird species.