▁heavy ▁police ▁presence ▁in ▁the ▁neighborhood ▁of ▁Bur ri ▁in ▁Kh art ou m ▁before ▁a ▁planned ▁protest . ▁They ▁were ▁then ▁arrested ▁by ▁plain cl oth es ▁officers . ▁Though ▁the ▁friend ▁was ▁released ▁seven ▁hours ▁later , ▁Moh am ad ▁continued ▁to ▁be ▁det ained , ▁and ▁his ▁relatives ▁were ▁informed ▁that ▁he ▁was ▁being ▁held ▁at ▁K ober ▁prison . ▁Before ▁his ▁arrest , ▁Moh am ad ▁made ▁a ▁video ▁for ▁Al ▁J aze era ▁explaining ▁why ▁he ▁participated ▁in ▁the ▁protest s . ▁In ▁it , ▁he ▁stated ▁his ▁belief ▁that ▁" after ▁twenty - three ▁years ▁of ▁opp ression ▁and ▁in just ice , ▁pover ty , ▁cr imes ▁that ▁are ▁all ▁committed ▁in ▁the ▁current ▁regime , ▁change ▁now ▁is ▁in ev itable ." ▁ ▁Am n esty ▁International ▁designated ▁Moh am ad ▁a ▁prisoner ▁of ▁conscience , ▁" h eld ▁sole ly ▁for ▁exer cis ing ▁his ▁right ▁to ▁freedom ▁of ▁expression ". ▁The ▁organization ▁also ▁stated ▁its ▁concern ▁that ▁Moh am ad ▁was ▁at ▁risk ▁of ▁tort ure . ▁Al ▁J aze era ▁reported ▁that ▁Sud an ese ▁Twitter ▁users ▁were ▁calling ▁for ▁his ▁release ▁under ▁the ▁has ht ag ▁# Free U sam ah . ▁ ▁References ▁ ▁External ▁links ▁▁▁▁ ▁Category : L iving ▁people ▁Category : Am n esty ▁International ▁prisoners ▁of ▁conscience ▁held ▁by ▁Sud an ▁Category : S ud an ese ▁journal ists ▁Category : S ud an ese ▁prisoners ▁and ▁d eta ine es ▁Category : Univers ity ▁of