Washington (AP) -- The Trump administration called Tuesday for Venezuelan President Nicolas Maduro to step down.

"For the safety and security of all the peoples of Latin America, it is time for Maduro to go," U.S. Ambassador to the United Nations Nikki Haley said during a speech on Latin America.

"I am not sure how we will make that happen but I know that we can't stop," she said right after her speech during a conference organized by the Council of the Americas. "We have to continue to isolate Maduro until he gives in."

Haley said the people of the South American country are "unwilling victims of a criminal narco-state" and said the May 20 elections in which Maduro is seeking re-election will be fraudulent if independent observers are absent.

The Venezuelan embassy did not immediately respond to a request for comment.

On Monday, Vice President Mike Pence urged members of the 35-nation Organization of American States to suspend Venezuela.

Quoting numbers from the United Nations, Haley said 1.5 million Venezuelans have fled the country since 2014 and described the exodus as "the largest displacement of people in the region's history."

The Venezuelan government has refused to allow international aid, alleging that would amount to foreign intervention. The South American nation also denies there is an ongoing humanitarian crisis.

At the same event Tuesday, U.S. Deputy Secretary of State John J. Sullivan announced an additional $18.5 million in bilateral funding to support displaced Venezuelans in Colombia.

This new funding is in addition to the more than $21 million in humanitarian assistance the United States has provided since 2017.

Haley's remarks were not limited to Maduro. She characterized the current situation in Venezuela as part of a model that...

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