A source close to the Houthi leadership told Al Jazeera on Tuesday that any Saudi prince or national seeking refuge would be "welcomed" by Yemen, their "brotherly neighbour".
"We are ready to offer sanctuary to any member of the Al Saud family or any Saudi national that wants to flee oppression and persecution," said the source, speaking on condition of anonymity.
The offer was "100 percent genuine" and the Houthis were not interested in gaining any "political mileage" from the situation, the source added.
On Sunday, 11 princes, four ministers, and several former ministers were detained in what is seen as an unprecedented crackdown that has shaken the kingdom.
The list of detainees includes Saudi Arabia's best-known international investor, billionaire Prince Alwaleed bin Talal, and senior ministers who were recently sacked such as Prince Miteb bin Abdullah, head of the National Guard, and Adel Faqih, the economy minister.