A Martin Luther King memorial march in Miami was disrupted as thousands ran for cover after gun fire rang out.<br /><br /> There were no deaths but eight people were shot. Police said they were aged between 11 to 30. One of them, a 20-year-old man, was in critical condition. <br /><br /> Several others were injured then fleeing the area.<br /><br /> Two people have been detained for questioning, and two weapons were recovered by police after an extensive search.<br />
