The Twitter account of Al Masirah TV, the main television news outlet run by Yemen's Iran-aligned Houthi movement, was suspended on Wednesday.
Al Masirah on its Telegram channel on Wednesday night said: "Twitter took steps to suspend the accounts of al-Masirah without giving reasons".
Twitter could not immediately be reached for comment, but the @MasirahTV Twitter page now says "Account suspended" for violating the rules of the social media platform, with no posts visible.
Twitter pages associated with a selection of leading Houthi figures, whose statements get published by Masirah, are still functioning.
Houthi forces, who say they are fighting a corrupt system in Yemen, ousted the internationally-recognised government of Yemen from power in the capital Sanaa in late 2014. A Saudi-led coalition then intervened in March 2015.
The conflict has created what the United Nations describes as the world's worst humanitarian crisis.
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