A grenade was tossed into a crowded street , local news reports said . No group has claimed responsibility for this attack . Seven weeks ago , one child died and several others were hurt in a grenade attack on a children 's Sunday school class in Kenya , the Kenya Red Cross said . Events like this have escalated since Kenyan forces invaded southern Somalia last year .
A grenade was tossed into a crowded street , local news reports said . No group has claimed responsibility for this attack . Events like this have escalated since Kenyan forces invaded southern Somalia last year .