The Latest on President Donald Trump and tariffs on Mexico (all times local):

9:45 a.m.

President Donald Trump says he expects to begin hitting Mexico with tariffs next week in a dispute over illegal immigration.

Mexican Foreign Affairs Secretary Marcelo Ebrard, center, departs a news conference at the Mexican Embassy in Washington, Tuesday, June 4, 2019, as part of a Mexican delegation in Washington for talks following trade tariff threats from the Trump Administration. (AP Photo/Andrew Harnik)
Mexican Foreign Affairs Secretary Marcelo Ebrard, center, departs a news conference at the Mexican Embassy in Washington, Tuesday, June 4, 2019, as part of a Mexican delegation in Washington for talks following trade tariff threats from the Trump Administration. (AP Photo/Andrew Harnik)

Trump says “millions” of migrants entering the U.S. through Mexico is “unacceptable” and that Mexico must stop it. He says he thinks Mexico will take steps to halt the migrant flow but, “if they won’t, we’re going to put tariffs on.”

The president last week to impose a monthly 5% tariff on Mexican imports starting Monday, rising to a total of 25% by October.

Mexican officials are in Washington to meet with their Trump administration counterparts and predicted Tuesday that an agreement could be reached during talks scheduled for Wednesday to avoid the tariffs.

Mexican Ambassador Martha Barcena Coqui, second from left, and Mexican Foreign Affairs Secretary Marcelo Ebrard, right, speak before a news conference at the Mexican Embassy in Washington, Tuesday, June 4, 2019, as part of a Mexican delegation in Washington for talks following trade tariff threats from the Trump Administration. (AP Photo/Andrew Harnik)
Mexican Ambassador Martha Barcena Coqui, second from left, and Mexican Foreign Affairs Secretary Marcelo Ebrard, right, speak before a news conference at the Mexican Embassy in Washington, Tuesday, June 4, 2019, as part of a Mexican delegation in Washington for talks following trade tariff threats from the Trump Administration. (AP Photo/Andrew Harnik)

Trump commented at a news conference in London with outgoing British Prime Minister Theresa May.

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8:55 a.m.

Mexico says it thinks there’s likely to be an agreement Wednesday with the United States that will avoid a 5% tariff on Mexican goods announced last week by President Donald Trump.

Mexican Foreign Minister Marcelo Ebrard told reporters Tuesday that despite his optimism, his team also will be ready for a non-agreement scenario.

Ebrard arrived in Washington last weekend to meet Wednesday with Secretary of State Mike Pompeo. Mexico calls the potential tariff hurtful to both economies and useless to slow down the flow of Central Americans migrating north.

The diplomatic counteroffensive launched by Mexico this week includes a Tuesday meeting of trade negotiator Jesus Seade with U.S. trade representative Robert Lighthizer.

Trump says he’ll impose the tariff beginning June 10 to force Mexico to keep mostly Central American migrants from crossing into the U.S.