Iran is the one behind the Shia.
Gulf states condemn attempted 'coup' in Yemen, back president.....
Gulf foreign ministers on Wednesday accused Shia militia in Yemen of attempting to stage a "coup" against President Abdrabuh Mansur Hadi, a day after the Huthi fighters seized the presidential palace.
"The states of the Gulf Cooperation Council consider what happened in Sanaa on Tuesday... a coup against the legitimate authority," the ministers said in a statement following an emergency meeting in Riyadh.
The GCC also expressed support for the "constitutionally legitimate authority" of Hadi, and rejected "all measures aimed at imposing change by force".....snip~
Gulf states condemn attempted 'coup' in Yemen, back president | MENAFN.COM
Then today.
Yemen president quits, throwing country deeper into chaos.....
"This is a coup," said Ahmed al-Fatesh, a hotel security supervisor, suggesting Hadi had been bullied from office. "The Houthis took power by force. Hadi is a legitimate president and was elected by more than 6 million Yemenis. Hadi tried to bring the political forces together."
This was a reference to a standoff between Hadi and the Shi'ite Muslim Houthi movement which this week has been holding the president a virtual prisoner in his official residence.....snip~
Yemen president quits, throwing country deeper into chaos | Reuters
They now hold the Parliament captive. Plus the Defense Minster.