Nasr Allah said US Deputy Assistant Secretary of State David Satterfield, "who exercises influence over certain opponents of the regime has set himself up in Lebanon to interfere in the tiniest of Lebanese details".
"I think he is going to set up an operations centre in the American embassy to direct the affairs of Lebanon," he said.
Asked about US declarations that Hizb Allah's eventual disarmament was an internal Lebanese matter, Nasr Allah said "that is a good thing. Any foreign interference in this matter will complicate things".
UN Security Council Resolution 1559, sponsored by the US and France and adopted in September, calls for the disarmament of Hizb Allah, besides the withdrawal of Syrian troops from the country.
No to disarming
On 15 March, US President George Bush said Washington viewed Hizb Allah "as a terrorist organisation, and I would hope that Hizb Allah would prove that they are not by laying down arms and not threatening peace between Israel and the Palestinians".
Nasr Allah immediately rejected Bush's call.
"We are being asked to disarm so that Lebanon remains defenceless. Our force is protecting Lebanon," he said.
"The core of the problem is that the United States and Israel want to disarm Hizb Allah."