In Bangladesh, tens of thousands of anti-government activists have marched through the capital, Dhaka, in the biggest protest of a six-day campaign to press for electoral reforms.

Chanting slogans such as "No reforms, no polls," the opposition supporters burned an effigy of the chief election commissioner, MA Aziz.

Witnesses estimate 50,000 people took part in Sunday's protest, which was watched closely by police.

The 14-party opposition alliance led by the Awami League organized the march. The alliance says the chief election commissioner is biased in favor of the government of Prime Minister Khaleda Zia.

The government is due to hand power in October to a non-partisan caretaker government ahead of January elections.

Some information for this report was provided by AFP, AP and Reuters.