Mohammad Ali al-Houthi said it signifies that these TV networks are influential and their activities have frightened the hegemonic regimes that claim to be advocates of freedom of speech.
He added that the move showed the true face of those claiming to democratic, RT Arabic reported.
A similar message has appeared on the websites of a series of Iranian and regional television networks that claims their domains have been “seized by the United States Government.”
The notice, which appeared late Tuesday on the website of English-language television news network Press TV as well as a number of other Iranian and regional news channels, cited US sanctions laws for the seizure and was accompanied by the seal of the Federal Bureau of Investigation (FBI) and the US Department of Commerce.
“The domain presstv.com has been seized by the United States Government in accordance with a seizure warrant...as part of a law enforcement action by the Bureau of Industry and Security, Office of Export Enforcement and Federal Bureau of Investigation,” the message reads.
The websites of Iran's Arabic-language Al Alam television news network, Yemen’s al-Masirah TV channel and Bahrain's Lualua television network were also among the targeted outlets.
The US government has not officially commented on the matter, but some reports said the websites might have been hacked.