The United States government said yesterday it has revoked the diplomatic visas of four officials in Honduras' coup-installed government, stepping up pressure on interim leaders who insist they can resist international demands to restore the ousted president.

The US State Department did not name the four, but a Honduran official said they included the Supreme Court magistrate who ordered the arrest of ousted President Manuel Zelaya and the president of Honduras' Congress.

The State Department is also reviewing the visas of all officials serving under interim President Roberto Micheletti, department spokesman Ian Kelly said. Micheletti's Deputy Foreign Minister Marta Lorena Alvarado said Supreme Court Justice Tomas Arita and Congressional President Jose Alfredo Saavedro were among those whose visas were removed.