Bangladesh’s opposition activists shout slogans after they burn a street vendor's belongings as they clash with police during their protest in Dhaka, Bangladesh, March 11, 2013. The protest was called by an alliance of 18 parties to denounce trials of several opposition politicians accused of mass killings and atrocities during Bangladesh's 1971 independence war against Pakistan. AP

A Bangladeshi opposition activist looks after they burn a street vendor's cart as they clash with police during their protest in Dhaka, Bangladesh. AP

Handmade bombs explode in front of Bangladesh National Party (BNP) party offices during a protest in Dhaka, Bangladesh. AP

Bangladeshi police chase opposition activists who clashed with them during a protest in Dhaka, Bangladesh. AP

Bangladeshi opposition activists shout slogans after they burn a street vendor's cart as they clash with police during their protest in Dhaka, Bangladesh. AP

Bangladeshi riot police fire rubber bullets at opposition activists who clashed with them during a protest in Dhaka, Bangladesh. AP

Bangladesh’s opposition activists shout slogans after they burn a street vendor's cart as they clash with police during their protest in Dhaka, Bangladesh. AP

A Bangladeshi opposition activist gestures to police as he challenges them to shoot him during their protest in Dhaka, Bangladesh. AP

A Bangladesh’s street vendor's furniture burns after they were set on fire by opposition activists after they clash with police during their protest in Dhaka, Bangladesh. AP

Bangladesh’s opposition activists shout slogans after they clashed with police during their protest in Dhaka, Bangladesh. AP