UPDATE 1-Guatemala says it has not pledged to accept U.S.-bound asylum seekers

(Adds quotes from Guatemala official, background on Guatemala election)

By Sofia Menchu

GUATEMALA CITY, June 18 (Reuters) - Guatemala has not yet committed to becoming a "safe third country" for U.S.-bound migrants seeking asylum, but is analyzing with the United States how to contain flows of people from Central America, the Interior Minister said on Tuesday.

U.S. President Donald Trump said in a Twitter post on Monday that Guatemala "is getting ready to sign a Safe-Third Agreement," suggesting Guatemala could receive asylum seekers https://www.reuters.com/article/us-usa-immigration-trump/trump-says-u-s-agency-will-begin-removing-millions-of-illegal-immigrants-idUSKCN1TJ04D from neighboring countries.

Trump added on Tuesday that Guatemala was "different" than in past administrations https://www.reuters.com/article/us-usa-immigration-trump/trump-says-immigration-roundup-will-start-next-week-idUSKCN1TJ2RZ, without providing details.

"We have not said we accept being a safe third country," Interior Minister Enrique Degenhart told reporters. "We're in discussions to find a measure that suits both countries."

Degenhart said he welcomed that the United States saw Guatemala as a "safe country."

If Guatemala accepted such an agreement, it would be obliged to process asylum claims from migrants who entered its territory first while en route to another country. That could apply to U.S.-bound Honduran or Salvadoran migrants passing through Guatemala.

Neighboring Mexico has so far refused to take on the safe third country role despite pressure from Washington to do more to stem migration across its southern border with Guatemala.

Trump has threatened to remove millions of undocumented immigrants from the United States, and this week moved to slash U.S. aid to Guatemala, El Salvador and Honduras over migration.

When asked about the possible aid cuts, Degenhart said that Guatemala was looking to negotiate with the United States, including securing support to help Guatemala better receive migrants.

"Guatemala ... doesn't have all the resources. This is one of the reasons that the United States in the short term, and in a responsible way, is calling attention to this support, which is part of what we're discussing now," Degenhart said.

Degenhart added that Guatemala, El Salvador, Honduras and Nicaragua already have a pact allowing for free mobility across their borders. The countries are discussing how to ensure this agreement is used for its original purposes, he said.

Degenhart said the pact "was not designed to be used for massive caravans" of people, referring to the large groups who have been traveling north.

Guatemala is slated to usher in a new president in January who would replace conservative President Jimmy Morales. Last weekend, a first-round vote put center-left candidate Sandra Torres https://www.reuters.com/article/us-guatemala-election/former-first-lady-torres-takes-lead-in-guatemala-election-idUSKCN1TH09T in first place for a runoff vote in August. (Reporting by Sofia Menchu; writing by Daina Beth Solomon, Dave Graham; editing by Jonathan Oatis and Grant McCool)