An official source at Yemeni Defense Ministry rejected on Friday allegations of Houthi rebels that Al-Tamthelah military post had engaged in an attack on demonstrators in Harf Sufyan district in I'mran governorate. 'Saba' News Agency quoted the source as saying that these allegations are 'untrue and mere fabrications,' pointing out that an armed rebellious group fired at the military post and injured 4 soldiers.