Some of the Injured protesters are in critical condition but can not enter to Hospital for treatment.
Religious personalities called for the march with coffins on Lulu Roundabout.
Today's first martyr was Jaffar Sadiq from Karana and the second Martyr was Ahmed Hamad Town Fourth Circle .
The full-scale assault launched at daybreak swept into Pearl Square, which has been the center of uprising against Bahrain's rulers since it began more than a month ago. Stinging clouds of tear gas filled streets and black smoke rose from the square, possibly from the protesters' tents set ablaze.
Witnesses said at least two protesters were martyred and thousands injured, but there was no official word on casualties from authorities. The witnesses spoke on condition of anonymity because of fears of reprisals from officials.
Protesters on Wednesday fled for cover into side streets and security forces blocked main roads into Manama. Mobile phones were apparently jammed in central Manama during the height of the attack and Internet service was at a crawl.
In Shiite villages, people went to mosques to pray in a sign of protest against the Pearl Square crackdown. Others lit fires in anger. Clashes were reported in other mostly Shiite areas of the country.
Army vehicles were also visible on an overpass leading into Manama's downtown financial district.
The troops apparently seized the road from protestors, who had sealed off the road in recent days and turned parts of the city into a ghost town.
One Shia pro-democracy activist said by telephone that the troops clearing the square were firing rubber bullets and he had seen three injured demonstrators.
"The Army has attacked the protestors there" said Muhammad Maskati, speaking from a nearby neighborhood blocked by troops. Despite the crackdown, "the protests will continue. That's the last thing I can say."
For Bahrain's authorities, clearing Pearl Square would be more of a symbolic blow against protesters than a strategic victory as opposition groups are still be able to mobilize marches and other actions against the leadership.
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