Massive anti-Israel rally held in Cairo
According to BCHR, 17 women are also among the detainees and 18 other activists are reportedly missing, a Press TV correspondent reported.
Since the beginning of the uprising in Bahrain dozens of anti-government protesters have been killed and many others have gone missing. The bodies of the missing are frequently found days after.
The head of BCHR, Nabeel Rajab, says now one in every 1,000 Bahraini is in detention for political reasons.
Witnesses say regime forces are conducting house to house searches to detain opposition activists.
Six opposition leaders have also been arrested and the Manama government has so far refused to provide any information on their fate.
The opposition leaders, five Shia and one Sunni, were rounded up on March 17.
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