The Houthis waited for Ahmed Wali Al-Thashy to leave a neighbourhood mosque and then dragged him possibly to a detention facility.
Ahmed was part of the Islah party during the periods of 1993-1994, and is well known to the community in the districts of Rada'a, in south-east Yemen.
Al-Islah party combines the Yemeni Muslim Brotherhood and tribal forces to its political outlook for Yemen.
Yemen has been ripped by violence since the revolution which ousted long time President Ali Abdullah Saleh from power in 2011. Since then, forces loyal to Saleh have been battling to regain control of the country alongside historical rivals the Houthis.