Yemeni police in the capital Sanaa have killed at least one Shia Houthi activist after they opened fire on hundreds of protesters attempting to storm the government headquarters. Al Jazeera's Hashem Ahelbarra reports from Sana'a. Subscribe to our channel http://bit.ly/AJSubscribe Follow us on Twitter https://twitter.com/AJEnglish Find us on Facebook https://www.facebook.com/aljazeera Check our website: http://www.aljazeera.com/