Bangladeshi riot police have fought with anti-government protesters in the capital, Dhaka, and at least 100 people were injured.
Police used batons and tear gas to stop thousands of opposition activists from marching to the office of Bangladeshi Prime Minister Khaleda Zia in central Dhaka.
Witnesses say protesters set off several home-made bombs, threw stones and tried to tear down barbed-wire barricades.
The injured protesters include former Home Minister Mohammad Nasim and lawmaker Asaduzzaman Noor of the opposition Awami League.
More than 10-thousand members of the security forces surrounded the prime minister's office to keep the protesters away.
A 14-party alliance of opposition parties led by the Awami League organized Tuesday's march to demand electoral reforms.
Opposition groups are calling for the removal of the chief election commissioner and his deputies, who they accuse of pro-government bias. The groups also want a say in appointing a caretaker government to supervise the next elections in January.
Zahurul Alam has more on the story.