The police then threw some fragmentation grenades at the students, that by then were seeking refuge in the space between the buses and concrete walls that divide the highway. 
Ndipo polisi wakawatupia wanafunzi mabomu ya kusambaratisha ya mkono, ambao kwa wakati huo walikuwa wakijitahidi kujiokoa kwa kujificha kwenye nafasi katikati ya misururu ya magari na ukuta uanotenganisha barabara hiyo kuu.