Bused migrants arrive outside of U.S. vice president's residence in Washington, D.C.

WASHINGTON, Sept. 15 (Xinhua) -- A group of undocumented migrants gathered outside of U.S. Vice President Kamala Harris' residence in U.S. capital Washington, D.C., Thursday morning.

Texas Governor Greg Abbott confirmed in a tweet that "two Texas buses of migrants" have arrived at the U.S. Naval Observatory.

Abbott, a Republican, accused Harris of denying acknowledging a crisis at the southern border due to an inflow of migrants.

"We're sending migrants to her backyard to call on the Biden administration to do its job &secure the border," the governor wrote.

For months, Abbott and Arizona Governor Doug Ducey have bused migrants to states and cities run by Democrats, who responded by denouncing the moves as a political stunt.

Florida Governor Ron DeSantis, another Republican, made a similar move on Wednesday by sending two planes of migrants to Martha's Vineyard, an island in Massachusetts.

Washington, D.C., Mayor Muriel Bowser declared a public emergency last week in response to the thousands of migrants arriving in the city by bus from Arizona and Texas.

Approximately 9,400 migrants have been bused to the U.S. capital, according to Bowser's office.

The latest batch of migrants sent to Washington, D.C., on Thursday reportedly included individuals from Venezuela, Uruguay, Colombia, and Mexico.

A volunteer from a non-governmental organization told the migrants outside of the Naval Observatory that they would be going to a local church.

Bowser previously asked the National Guard to be activated to assist with migrants coming to the city but her requests have been denied by the Pentagon.