U.S. administration has revoked Venezuelan ambassador to U.S.A. Bernard Alvarez Herrera’s visa after Chavez's decision not to allow the U.S. diplomat, Larry Palmer, to be ambassador, American media reported.

Venezuela's Deputy Foreign Minister Temir Porras wrote on his Twitter account: "I can confirm. USA revoked the visa of ambassador Bernardo Alvarez."

"We said there would be consequences when the Venezuelan government rescinded agreement regarding our nominee, Larry Palmer. We have taken appropriate, proportional and reciprocal action," U.S. State Department spokesperson Mark Toner said in an emailed statement.

“There are tensions in the relationship, and it's precisely because of that that we feel that it's important to have appropriate diplomatic relations,” Toner said.

The spokesman said said the U.S. regrets the Venezuelan government's decision to block Palmer's appointment, saying, “It affects our ability to carry out normal diplomatic relations.”