FILE PHOTO: Yemen's former President Ali Abdullah Saleh addresses a rally held to mark the 35th anniversary of the establishment of his General People's Congress party in Sanaa, Yemen August 24, 2017. REUTERS/Khaled Abdullah/File Photo

SANAA (Reuters) - Fighters from Yemen’s armed Houthi movement blew up house the house of ex-President Ali Abdullah Saleh in the center of the capital Sanaa on Monday, residents reported, as his whereabouts remain unknown.

His loyalists have lost ground on the sixth day of heavy urban combat with the Iran-aligned Houthis, his former allies in nearly three years of war with a Saudi-led military coalition.