Ferguson , Missouri ( CNN ) At least three people were shot in separate incidents in Ferguson , Missouri , on late Tuesday and early Wednesday as hundreds of demonstrators gathered in support of protests in Baltimore , a city spokesman said . Two people were shot in the neck and another was shot in the leg , spokesman Jeff Small said . There is a suspect in custody in the latter case : a 20-year-old male from St. Louis County . The two victims shot in the neck were hospitalized , Small said . `` Police are having a difficult time investigating because of the rocks being thrown at them , '' he said . `` At this point police are not sure if the ( shootings are ) linked to the protest or not . '' St. Louis Alderman Antonio French posted video on his Twitter account . Multiple gunshots can be heard as people flee in panic . Demonstrators set a portable toilet on fire . One person can be seen squirting what appears to be lighter fluid on it . pic.twitter.com/FG0P2yf5Uf . The unrest carried on until about 3 a.m. and three police vehicles were damaged by rocks . The renewed tensions in Ferguson follow rioting in Baltimore after the death of Freddie Gray . The 25-year-old was arrested by police on April 12 and died one week later from a fatal spinal cord injury . Similar deaths over the last year include Michael Brown in Ferguson ; Eric Garner in New York ; and Walter Scott in North Charleston , South Carolina . CNN 's Eliott C. McLaughlin , Tina Burnside and Dave Alsup contributed to this report .
Hundreds people shot , one man in custody , city spokesman says . Three of demonstrators gathered in support of protests in Baltimore . Police not sure if shootings are related to protests , spokesman says .