Live ammunition is used against protesters in Sanaa and Aden , they say . At least 169 people are injured by bullets , grenades or batons in both cities , they say . The Republican Guard fought military personnel who were protecting demonstrators . Doctors and eyewitnesses in the cities told CNN that another 169 people had been injured , some critically . ` The soldiers were unarmed , according to an opposition security official .
Live ammunition is used against protesters in Sanaa and Aden , they say . At least 169 people are injured by bullets , grenades or batons in both cities , they say . The Republican Guard fought military personnel who were protecting demonstrators . The soldiers were unarmed , according to an opposition security official .